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 (1 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: 10.863s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-09 14:31:36,434 autosynth [ERROR] > Synthesis failed
2020-11-09 14:31:36,434 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-09 14:31:36,446 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-09 14:31:36,456 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
th [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/380/sponge_log.log
2020-11-10 01:53:17,314 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-10 01:53:17,529 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-380
nothing to commit, working tree clean
2020-11-10 01:53:17,685 synthtool [DEBUG] > Ensuring dependencies.
2020-11-10 01:53:17,697 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-10 01:53:17,698 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-10 01:53:17,702 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-10 01:53:28,978 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
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
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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 (1 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: 11.218s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-10 01:53:29,067 autosynth [ERROR] > Synthesis failed
2020-11-10 01:53:29,067 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-10 01:53:29,079 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-10 01:53:29,092 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
th [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/384/sponge_log.log
2020-11-10 14:27:47,182 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-10 14:27:47,399 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-384
nothing to commit, working tree clean
2020-11-10 14:27:47,549 synthtool [DEBUG] > Ensuring dependencies.
2020-11-10 14:27:47,558 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-10 14:27:47,559 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-10 14:27:47,563 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-10 14:27:57,883 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
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
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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 (1 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: 10.266s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-10 14:27:57,942 autosynth [ERROR] > Synthesis failed
2020-11-10 14:27:57,942 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-10 14:27:57,953 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-10 14:27:57,963 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
th [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/388/sponge_log.log
2020-11-11 01:27:37,739 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-11 01:27:37,953 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-388
nothing to commit, working tree clean
2020-11-11 01:27:38,101 synthtool [DEBUG] > Ensuring dependencies.
2020-11-11 01:27:38,112 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-11 01:27:38,113 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-11 01:27:38,117 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-11 01:27:49,171 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
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
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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 (1 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: 10.994s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-11 01:27:49,253 autosynth [ERROR] > Synthesis failed
2020-11-11 01:27:49,253 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-11 01:27:49,270 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-11 01:27:49,284 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
0-11-11 14:26:07,213 autosynth [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/395/sponge_log.log
2020-11-11 14:26:07,215 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-11 14:26:07,420 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-395
nothing to commit, working tree clean
2020-11-11 14:26:07,561 synthtool [DEBUG] > Ensuring dependencies.
2020-11-11 14:26:07,571 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-11 14:26:07,572 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-11 14:26:07,575 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-11 14:26:17,097 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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 (1 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: 9.461s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-11 14:26:17,153 autosynth [ERROR] > Synthesis failed
2020-11-11 14:26:17,154 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-11 14:26:17,165 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-11 14:26:17,175 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
th [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/398/sponge_log.log
2020-11-12 01:26:59,368 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-12 01:26:59,588 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-398
nothing to commit, working tree clean
2020-11-12 01:26:59,741 synthtool [DEBUG] > Ensuring dependencies.
2020-11-12 01:26:59,752 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-12 01:26:59,752 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-12 01:26:59,757 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-12 01:27:10,732 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
Loading: 0 packages loaded
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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 (1 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: 10.913s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-12 01:27:10,809 autosynth [ERROR] > Synthesis failed
2020-11-12 01:27:10,809 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-12 01:27:10,826 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-12 01:27:10,836 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
th [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/405/sponge_log.log
2020-11-12 14:50:46,927 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-12 14:50:47,156 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-405
nothing to commit, working tree clean
2020-11-12 14:50:47,310 synthtool [DEBUG] > Ensuring dependencies.
2020-11-12 14:50:47,321 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-12 14:50:47,322 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-12 14:50:47,326 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-12 14:50:59,023 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
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
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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 (1 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: 11.627s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-12 14:50:59,112 autosynth [ERROR] > Synthesis failed
2020-11-12 14:50:59,113 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-12 14:50:59,125 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-12 14:50:59,135 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
-11-13 01:36:40,939 autosynth [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/407/sponge_log.log
2020-11-13 01:36:40,941 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-13 01:36:41,143 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-407
nothing to commit, working tree clean
2020-11-13 01:36:41,287 synthtool [DEBUG] > Ensuring dependencies.
2020-11-13 01:36:41,296 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-13 01:36:41,297 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-13 01:36:41,301 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-13 01:36:51,958 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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 (1 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: 10.604s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-13 01:36:52,017 autosynth [ERROR] > Synthesis failed
2020-11-13 01:36:52,017 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-13 01:36:52,028 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-13 01:36:52,036 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
0-11-13 14:26:27,072 autosynth [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/412/sponge_log.log
2020-11-13 14:26:27,074 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-13 14:26:27,291 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-412
nothing to commit, working tree clean
2020-11-13 14:26:27,438 synthtool [DEBUG] > Ensuring dependencies.
2020-11-13 14:26:27,448 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-13 14:26:27,449 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-13 14:26:27,453 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-13 14:26:36,668 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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 (1 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: 9.156s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-13 14:26:36,723 autosynth [ERROR] > Synthesis failed
2020-11-13 14:26:36,724 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-13 14:26:36,735 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-13 14:26:36,744 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
0-11-14 01:34:03,770 autosynth [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/417/sponge_log.log
2020-11-14 01:34:03,772 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-14 01:34:04,012 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-417
nothing to commit, working tree clean
2020-11-14 01:34:04,171 synthtool [DEBUG] > Ensuring dependencies.
2020-11-14 01:34:04,182 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-14 01:34:04,183 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-14 01:34:04,187 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-14 01:34:14,028 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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 (1 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: 9.788s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-14 01:34:14,092 autosynth [ERROR] > Synthesis failed
2020-11-14 01:34:14,093 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-14 01:34:14,104 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-14 01:34:14,114 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
-11-14 14:27:54,217 autosynth [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/420/sponge_log.log
2020-11-14 14:27:54,219 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-14 14:27:54,439 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-420
nothing to commit, working tree clean
2020-11-14 14:27:54,590 synthtool [DEBUG] > Ensuring dependencies.
2020-11-14 14:27:54,600 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-14 14:27:54,601 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-14 14:27:54,605 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-14 14:28:04,850 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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 (1 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: 10.192s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-14 14:28:04,923 autosynth [ERROR] > Synthesis failed
2020-11-14 14:28:04,923 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-14 14:28:04,936 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-14 14:28:04,947 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
gs/java-compute/420/sponge_log.log
2020-11-15 01:28:13,852 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-15 01:28:14,062 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-420
nothing to commit, working tree clean
2020-11-15 01:28:14,208 synthtool [DEBUG] > Ensuring dependencies.
2020-11-15 01:28:14,219 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-15 01:28:14,219 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-15 01:28:14,223 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-15 01:28:24,083 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
Loading: 0 packages loaded
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
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
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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
Loading: 0 packages loaded
    currently loading: gapic/google/compute/v1
Analyzing: target //gapic/google/compute/v1:google-cloud-compute-v1-java (1 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: 9.806s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-15 01:28:24,145 autosynth [ERROR] > Synthesis failed
2020-11-15 01:28:24,145 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-15 01:28:24,157 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-15 01:28:24,168 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
0-11-15 14:27:49,838 autosynth [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/421/sponge_log.log
2020-11-15 14:27:49,841 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-15 14:27:50,064 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-421
nothing to commit, working tree clean
2020-11-15 14:27:50,218 synthtool [DEBUG] > Ensuring dependencies.
2020-11-15 14:27:50,229 synthtool [DEBUG] > Cloning discovery-artifact-manager.
2020-11-15 14:27:50,230 synthtool [DEBUG] > Using precloned repo /home/kbuilder/.cache/synthtool/discovery-artifact-manager
2020-11-15 14:27:50,234 synthtool [DEBUG] > Generating code for: //gapic/google/compute/v1:google-cloud-compute-v1-java.
2020-11-15 14:28:00,239 synthtool [ERROR] > Failed executing bazel --max_idle_secs=240 build //gapic/google/compute/v1:google-cloud-compute-v1-java:

Starting local Bazel server and connecting to it...
Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/protocolbuffers/protobuf/archive/fe1790ca0df67173702f70d5646b82f48f412b99.zip) = 419f654d36998a51de2e0b79a67885ec48f8d803615ce66ec82cd15f54936730
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gax-java/archive/v1.54.0.zip) = 61f813b2ad571a0ca59f9e28252a9958bb283198ab4dc827eb776c48dd13fc0d
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
Loading: 0 packages loaded
INFO: SHA256 (https://github.com/googleapis/gapic-generator/archive/128224d3c06a23fe55a32abd5d3760515974291d.zip) = cb2cd312a6c6560d641531879d51cc6e1b5a17f1eff485234d502eb37c681532
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/googleapis/archive/84c8ad4e52f8eec8f08a60636cfa597b86969b5c.zip) = eccaa7c65f1ba78448c5bb3fbf2f1e8d60ec0f9b3c0e0eddf843cb7c7ea51141
Loading: 0 packages loaded
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
INFO: SHA256 (https://github.com/googleapis/protoc-java-resource-names-plugin/archive/7632facb0a1d9f76d9152eefe21422dc55e36524.zip) = 5a1e32596021450457a0f9926e8bc601fb4f8d07e634afc5845719d3510a4c9c
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 (1 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: 9.948s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)
FAILED: Build did NOT complete successfully (8 packages loaded, 21 targets configured)

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
    service, version, "java", tar_strip_components=0, **kwargs
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 182, 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=240', 'build', '//gapic/google/compute/v1:google-cloud-compute-v1-java']' returned non-zero exit status 1.
2020-11-15 14:28:00,298 autosynth [ERROR] > Synthesis failed
2020-11-15 14:28:00,298 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at b2413cd chore(deps): update dependency com.google.cloud:libraries-bom to v15 (#244)
2020-11-15 14:28:00,310 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-11-15 14:28:00,320 autosynth [DEBUG] > Running: git clean -fdx
Removing __pycache__/
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 354, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 189, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 334, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 65, in synthesize_loop
    has_changes = toolbox.synthesize_version_in_new_branch(synthesizer, youngest)
  File "/tmpfs/src/github/synthtool/autosynth/synth_toolbox.py", line 259, 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:
-11-16 01:28:21,590 autosynth [DEBUG] > log_file_path: /tmpfs/src/logs/java-compute/422/sponge_log.log
2020-11-16 01:28:21,593 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-11-16 01:28:21,817 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-compute/synth.py.
On branch autosynth-422