Synthesis failed for java-compute

Hello! Autosynth couldn't regenerate java-compute. :broken_heart:
Here's the output from running synth.py:
-m synthtool --metadata synth.metadata synth.py --
2020-06-23 02:17:55,589 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-202
nothing to commit, working tree clean
2020-06-23 02:17:55,730 synthtool [DEBUG] > Ensuring dependencies.
2020-06-23 02:17:55,739 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-23 02:17:55,740 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-23 02:17:55,744 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-23 02:17:56,036 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.280s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-23 02:17:56,072 autosynth [ERROR] > Synthesis failed
2020-06-23 02:17:56,072 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 7ad4d75 deps: update core dependencies to v1.93.5 (#152)
2020-06-23 02:17:56,084 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-23 02:17:56,093 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 649, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 629, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
-m synthtool --metadata synth.metadata synth.py --
2020-06-23 15:38:48,380 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-207
nothing to commit, working tree clean
2020-06-23 15:38:48,514 synthtool [DEBUG] > Ensuring dependencies.
2020-06-23 15:38:48,524 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-23 15:38:48,525 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-23 15:38:48,529 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-23 15:38:48,749 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.209s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)

2020-06-23 15:38:48,751 synthtool [DEBUG] > Wrote metadata to synth.metadata.
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-23 15:38:48,806 autosynth [ERROR] > Synthesis failed
2020-06-23 15:38:48,806 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 7ad4d75 deps: update core dependencies to v1.93.5 (#152)
2020-06-23 15:38:48,818 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-23 15:38:48,827 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 657, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 637, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
nv/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-24 02:11:54,587 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-209
nothing to commit, working tree clean
2020-06-24 02:11:54,737 synthtool [DEBUG] > Ensuring dependencies.
2020-06-24 02:11:54,747 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-24 02:11:54,748 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-24 02:11:54,752 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-24 02:11:55,007 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.240s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)

2020-06-24 02:11:55,008 synthtool [DEBUG] > Wrote metadata to synth.metadata.
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-24 02:11:55,065 autosynth [ERROR] > Synthesis failed
2020-06-24 02:11:55,065 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 8290caf test: remove unused throws (#166)
2020-06-24 02:11:55,079 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-24 02:11:55,089 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 657, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 637, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
m synthtool --metadata synth.metadata synth.py --
2020-06-24 15:43:20,791 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-213
nothing to commit, working tree clean
2020-06-24 15:43:20,928 synthtool [DEBUG] > Ensuring dependencies.
2020-06-24 15:43:20,938 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-24 15:43:20,938 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-24 15:43:20,942 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-24 15:43:21,252 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.293s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)

2020-06-24 15:43:21,253 synthtool [DEBUG] > Wrote metadata to synth.metadata.
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-24 15:43:21,287 autosynth [ERROR] > Synthesis failed
2020-06-24 15:43:21,288 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at df82399 test: use custom network for firewall test (#167)
2020-06-24 15:43:21,299 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-24 15:43:21,307 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 657, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 637, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
m synthtool --metadata synth.metadata synth.py --
2020-06-25 02:45:12,039 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-215
nothing to commit, working tree clean
2020-06-25 02:45:12,182 synthtool [DEBUG] > Ensuring dependencies.
2020-06-25 02:45:12,192 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-25 02:45:12,193 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-25 02:45:12,197 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-25 02:45:12,450 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.240s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-25 02:45:12,495 autosynth [ERROR] > Synthesis failed
2020-06-25 02:45:12,495 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at df82399 test: use custom network for firewall test (#167)
2020-06-25 02:45:12,508 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-25 02:45:12,518 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 657, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 637, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
m synthtool --metadata synth.metadata synth.py --
2020-06-25 13:01:55,630 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-217
nothing to commit, working tree clean
2020-06-25 13:01:55,768 synthtool [DEBUG] > Ensuring dependencies.
2020-06-25 13:01:55,778 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-25 13:01:55,779 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-25 13:01:55,783 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-25 13:01:56,084 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.285s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)

2020-06-25 13:01:56,085 synthtool [DEBUG] > Wrote metadata to synth.metadata.
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-25 13:01:56,127 autosynth [ERROR] > Synthesis failed
2020-06-25 13:01:56,128 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at df82399 test: use custom network for firewall test (#167)
2020-06-25 13:01:56,140 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-25 13:01:56,148 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 657, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 637, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
m synthtool --metadata synth.metadata synth.py --
2020-06-25 15:45:53,006 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-217
nothing to commit, working tree clean
2020-06-25 15:45:53,150 synthtool [DEBUG] > Ensuring dependencies.
2020-06-25 15:45:53,160 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-25 15:45:53,161 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-25 15:45:53,165 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-25 15:45:53,414 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.232s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)

2020-06-25 15:45:53,415 synthtool [DEBUG] > Wrote metadata to synth.metadata.
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-25 15:45:53,470 autosynth [ERROR] > Synthesis failed
2020-06-25 15:45:53,471 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at df82399 test: use custom network for firewall test (#167)
2020-06-25 15:45:53,489 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-25 15:45:53,498 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 657, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 637, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
h.py --
2020-06-26 02:53:31,291 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-220
nothing to commit, working tree clean
2020-06-26 02:53:31,430 synthtool [DEBUG] > Ensuring dependencies.
2020-06-26 02:53:31,441 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-26 02:53:31,442 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-26 02:53:31,446 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-26 02:53:31,699 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.241s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)

2020-06-26 02:53:31,700 synthtool [DEBUG] > Wrote metadata to synth.metadata.
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-26 02:53:31,746 autosynth [ERROR] > Synthesis failed
2020-06-26 02:53:31,746 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at df74c7b build(deps): update dependency com.google.cloud:google-cloud-shared-config to v0.9.0 (#149)
2020-06-26 02:53:31,760 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-26 02:53:31,770 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 657, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 637, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
h.py --
2020-06-26 13:08:09,525 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-222
nothing to commit, working tree clean
2020-06-26 13:08:09,662 synthtool [DEBUG] > Ensuring dependencies.
2020-06-26 13:08:09,672 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-26 13:08:09,673 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-26 13:08:09,677 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-26 13:08:09,968 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.278s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)

2020-06-26 13:08:09,970 synthtool [DEBUG] > Wrote metadata to synth.metadata.
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-26 13:08:10,009 autosynth [ERROR] > Synthesis failed
2020-06-26 13:08:10,009 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at df74c7b build(deps): update dependency com.google.cloud:google-cloud-shared-config to v0.9.0 (#149)
2020-06-26 13:08:10,021 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-26 13:08:10,030 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 657, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 637, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
h.py --
2020-06-26 15:29:29,229 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-224
nothing to commit, working tree clean
2020-06-26 15:29:29,359 synthtool [DEBUG] > Ensuring dependencies.
2020-06-26 15:29:29,370 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-26 15:29:29,370 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-26 15:29:29,374 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-26 15:29:29,655 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.266s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)

2020-06-26 15:29:29,657 synthtool [DEBUG] > Wrote metadata to synth.metadata.
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-26 15:29:29,696 autosynth [ERROR] > Synthesis failed
2020-06-26 15:29:29,696 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at df74c7b build(deps): update dependency com.google.cloud:google-cloud-shared-config to v0.9.0 (#149)
2020-06-26 15:29:29,709 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-26 15:29:29,720 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 657, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 637, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
h.py --
2020-06-27 02:55:21,021 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-225
nothing to commit, working tree clean
2020-06-27 02:55:21,157 synthtool [DEBUG] > Ensuring dependencies.
2020-06-27 02:55:21,167 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-27 02:55:21,168 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-27 02:55:21,172 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-27 02:55:21,461 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.274s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-27 02:55:21,498 autosynth [ERROR] > Synthesis failed
2020-06-27 02:55:21,499 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at df74c7b build(deps): update dependency com.google.cloud:google-cloud-shared-config to v0.9.0 (#149)
2020-06-27 02:55:21,510 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-27 02:55:21,519 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 657, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 637, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
y --
2020-06-28 03:38:37,756 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-225
nothing to commit, working tree clean
2020-06-28 03:38:37,895 synthtool [DEBUG] > Ensuring dependencies.
2020-06-28 03:38:37,907 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-28 03:38:37,908 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-28 03:38:37,913 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-28 03:38:38,184 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target //gapic/google/compute/v1:compute_java_gapic_test: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.254s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-06-28 03:38:38,246 autosynth [ERROR] > Synthesis failed
2020-06-28 03:38:38,246 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at df74c7b build(deps): update dependency com.google.cloud:google-cloud-shared-config to v0.9.0 (#149)
2020-06-28 03:38:38,260 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-28 03:38:38,270 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
Traceback (most recent call last):
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 367, in synthesize_loop
    synthesize_inner_loop(fork, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 657, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 506, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 637, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 375, in synthesize_loop
    synthesize_loop_single_pr(toolbox, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 401, in synthesize_loop_single_pr
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 411, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-compute. :sob:
Here's the output from running synth.py:
h.py --
2020-06-28 15:50:44,960 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-225
nothing to commit, working tree clean
2020-06-28 15:50:45,111 synthtool [DEBUG] > Ensuring dependencies.
2020-06-28 15:50:45,124 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-06-28 15:50:45,125 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-06-28 15:50:45,130 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-06-28 15:50:45,474 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Loading:
Loading: 0 packages loaded
DEBUG: Rule 'com_google_protobuf' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730"
DEBUG: Call stack for the definition of repository 'com_google_protobuf' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:17:1
DEBUG: Rule 'com_google_api_gax_java' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d"
DEBUG: Call stack for the definition of repository 'com_google_api_gax_java' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:54:1
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532"
DEBUG: Call stack for the definition of repository 'com_google_api_codegen' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:45:1
DEBUG: Rule 'com_google_googleapis' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141"
DEBUG: Call stack for the definition of repository 'com_google_googleapis' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:109:5
 - /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/com_google_api_codegen/repositories.bzl:68:5
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:88:1
DEBUG: Rule 'com_google_protoc_java_resource_names_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c"
DEBUG: Call stack for the definition of repository 'com_google_protoc_java_resource_names_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a6a947520debde4a04620f960b938b83/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/discovery-artifact-manager/WORKSPACE:82:1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (0 packages loaded, 0 targets configured)
ERROR: While resolving toolchains for target @bazel_tools//tools/build_defs/pkg:build_tar: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
ERROR: Analysis of target '//gapic/google/compute/v1:google-cloud-compute-v1-java' failed; build aborted: invalid registered toolchain '@gapic_generator_python//:pyenv3_toolchain': no such package '@gapic_generator_python//': The repository '@gapic_generator_python' could not be resolved
INFO: Elapsed time: 0.325s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)
FAILED: Build did NOT complete successfully (0 packages loaded, 0 targets configured)

2020-06-28 15:50:45,475 synthtool [DEBUG] > Wrote metadata to synth.metadata.
Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-compute/synth.py", line 33, in <module>
    discogapic = True,
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.