DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.746s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-07 15:47:25,401 autosynth [ERROR] > Synthesis failed
2020-06-07 15:47:25,402 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-07 15:47:25,407 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-07 15:47:25,414 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 615, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 476, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 595, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 371, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 381, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 119, 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-iam. :sob:
Here's the output from running synth.py:
ary
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-08 15:44:22,589 autosynth [ERROR] > Synthesis failed
2020-06-08 15:44:22,590 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-08 15:44:22,595 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-08 15:44:22,600 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-08 15:44:22,735 autosynth [DEBUG] > Running: git checkout 74ecaa1ea647a6271ac4afa9ef7b7195ef72e829
Note: checking out '74ecaa1ea647a6271ac4afa9ef7b7195ef72e829'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-08 15:44:22,741 autosynth [DEBUG] > Running: git checkout f13864cd532f98a4682cec48105580fa9a5c9978
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at f13864c fix: fix log path for single-commit, single-branch executions (#613)
2020-06-08 15:44:22,758 autosynth [DEBUG] > Running: git branch -f autosynth-64
2020-06-08 15:44:22,762 autosynth [DEBUG] > Running: git checkout autosynth-64
Switched to branch 'autosynth-64'
2020-06-08 15:44:22,767 autosynth [INFO] > Running synthtool
2020-06-08 15:44:22,768 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-08 15:44:22,768 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/64/sponge_log.log
2020-06-08 15:44:22,770 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-08 15:44:22,982 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-64
nothing to commit, working tree clean
2020-06-08 15:44:23,118 synthtool [DEBUG] > Ensuring dependencies.
2020-06-08 15:44:23,131 synthtool [DEBUG] > Cloning googleapis.
2020-06-08 15:44:23,499 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-08 15:44:25,220 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "b5f3e4c60496b237d2e761bc8efdcc84137786d6a55187480b3c130baabf4d74"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.713s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-08 15:44:25,267 autosynth [ERROR] > Synthesis failed
2020-06-08 15:44:25,268 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-08 15:44:25,314 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-08 15:44:25,341 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 619, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 476, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 599, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 371, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 381, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
ary
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-09 02:56:24,378 autosynth [ERROR] > Synthesis failed
2020-06-09 02:56:24,378 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-09 02:56:24,383 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-09 02:56:24,387 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-09 02:56:24,531 autosynth [DEBUG] > Running: git checkout 74ecaa1ea647a6271ac4afa9ef7b7195ef72e829
Note: checking out '74ecaa1ea647a6271ac4afa9ef7b7195ef72e829'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-09 02:56:24,536 autosynth [DEBUG] > Running: git checkout f13864cd532f98a4682cec48105580fa9a5c9978
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at f13864c fix: fix log path for single-commit, single-branch executions (#613)
2020-06-09 02:56:24,552 autosynth [DEBUG] > Running: git branch -f autosynth-64
2020-06-09 02:56:24,555 autosynth [DEBUG] > Running: git checkout autosynth-64
Switched to branch 'autosynth-64'
2020-06-09 02:56:24,559 autosynth [INFO] > Running synthtool
2020-06-09 02:56:24,559 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-09 02:56:24,560 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/64/sponge_log.log
2020-06-09 02:56:24,562 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-09 02:56:24,776 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-64
nothing to commit, working tree clean
2020-06-09 02:56:24,910 synthtool [DEBUG] > Ensuring dependencies.
2020-06-09 02:56:24,920 synthtool [DEBUG] > Cloning googleapis.
2020-06-09 02:56:25,520 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-09 02:56:27,183 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.654s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-09 02:56:27,220 autosynth [ERROR] > Synthesis failed
2020-06-09 02:56:27,220 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-09 02:56:27,225 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-09 02:56:27,231 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 619, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 476, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 599, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 371, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 381, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
ne 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-09 15:56:37,683 autosynth [ERROR] > Synthesis failed
2020-06-09 15:56:37,684 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-09 15:56:37,689 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-09 15:56:37,694 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-09 15:56:37,816 autosynth [DEBUG] > Running: git checkout 74ecaa1ea647a6271ac4afa9ef7b7195ef72e829
Note: checking out '74ecaa1ea647a6271ac4afa9ef7b7195ef72e829'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-09 15:56:37,822 autosynth [DEBUG] > Running: git checkout 88645a8f6e1b1c90fed625158960ffec565b023a
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at 88645a8 docs: add diagram and README for autosynth (#615)
2020-06-09 15:56:37,839 autosynth [DEBUG] > Running: git branch -f autosynth-66
2020-06-09 15:56:37,843 autosynth [DEBUG] > Running: git checkout autosynth-66
Switched to branch 'autosynth-66'
2020-06-09 15:56:37,848 autosynth [INFO] > Running synthtool
2020-06-09 15:56:37,848 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-09 15:56:37,848 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/66/sponge_log.log
2020-06-09 15:56:37,850 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-09 15:56:38,054 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-66
nothing to commit, working tree clean
2020-06-09 15:56:38,184 synthtool [DEBUG] > Ensuring dependencies.
2020-06-09 15:56:38,196 synthtool [DEBUG] > Cloning googleapis.
2020-06-09 15:56:38,821 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-09 15:56:40,425 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.595s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-09 15:56:40,469 autosynth [ERROR] > Synthesis failed
2020-06-09 15:56:40,470 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-09 15:56:40,475 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-09 15:56:40,480 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 619, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 476, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 599, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 371, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 381, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
ne 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-10 02:54:49,998 autosynth [ERROR] > Synthesis failed
2020-06-10 02:54:49,999 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-10 02:54:50,004 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-10 02:54:50,009 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-10 02:54:50,136 autosynth [DEBUG] > Running: git checkout 74ecaa1ea647a6271ac4afa9ef7b7195ef72e829
Note: checking out '74ecaa1ea647a6271ac4afa9ef7b7195ef72e829'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-10 02:54:50,142 autosynth [DEBUG] > Running: git checkout 88645a8f6e1b1c90fed625158960ffec565b023a
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at 88645a8 docs: add diagram and README for autosynth (#615)
2020-06-10 02:54:50,160 autosynth [DEBUG] > Running: git branch -f autosynth-66
2020-06-10 02:54:50,165 autosynth [DEBUG] > Running: git checkout autosynth-66
Switched to branch 'autosynth-66'
2020-06-10 02:54:50,169 autosynth [INFO] > Running synthtool
2020-06-10 02:54:50,170 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-10 02:54:50,170 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/66/sponge_log.log
2020-06-10 02:54:50,172 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-10 02:54:50,378 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-66
nothing to commit, working tree clean
2020-06-10 02:54:50,510 synthtool [DEBUG] > Ensuring dependencies.
2020-06-10 02:54:50,522 synthtool [DEBUG] > Cloning googleapis.
2020-06-10 02:54:50,875 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-10 02:54:52,487 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.603s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-10 02:54:52,530 autosynth [ERROR] > Synthesis failed
2020-06-10 02:54:52,531 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-10 02:54:52,536 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-10 02:54:52,541 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 619, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 476, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 599, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 371, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 381, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
ate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-10 16:00:59,853 autosynth [ERROR] > Synthesis failed
2020-06-10 16:00:59,853 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-10 16:00:59,858 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-10 16:00:59,861 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-10 16:00:59,998 autosynth [DEBUG] > Running: git checkout 74ecaa1ea647a6271ac4afa9ef7b7195ef72e829
Note: checking out '74ecaa1ea647a6271ac4afa9ef7b7195ef72e829'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-10 16:01:00,002 autosynth [DEBUG] > Running: git checkout fc0fce9d9ae75b536754b2d0f49408205d4c7a53
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at fc0fce9 chore(deps): update dependency com.google.cloud.samples:shared-configuration to v1.0.18 (#619)
2020-06-10 16:01:00,019 autosynth [DEBUG] > Running: git branch -f autosynth-68
2020-06-10 16:01:00,022 autosynth [DEBUG] > Running: git checkout autosynth-68
Switched to branch 'autosynth-68'
2020-06-10 16:01:00,027 autosynth [INFO] > Running synthtool
2020-06-10 16:01:00,027 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-10 16:01:00,027 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/68/sponge_log.log
2020-06-10 16:01:00,029 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-10 16:01:00,246 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-68
nothing to commit, working tree clean
2020-06-10 16:01:00,384 synthtool [DEBUG] > Ensuring dependencies.
2020-06-10 16:01:00,393 synthtool [DEBUG] > Cloning googleapis.
2020-06-10 16:01:00,733 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-10 16:01:02,397 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.656s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-10 16:01:02,451 autosynth [ERROR] > Synthesis failed
2020-06-10 16:01:02,451 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 74ecaa1 build(deps): update dependency org.apache.maven.plugins:maven-project-info-reports-plugin to v3.1.0 (#9)
2020-06-10 16:01:02,456 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-10 16:01:02,461 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 619, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 476, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 599, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 371, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 381, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-11 03:05:07,229 autosynth [ERROR] > Synthesis failed
2020-06-11 03:05:07,230 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 22705a9 build(deps): update dependency com.google.cloud:google-cloud-shared-config to v0.8.0 (#11)
2020-06-11 03:05:07,235 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-11 03:05:07,240 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-11 03:05:07,374 autosynth [DEBUG] > Running: git checkout 22705a9764d17e0d8d5f7e1069b1b18352f3765a
Note: checking out '22705a9764d17e0d8d5f7e1069b1b18352f3765a'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 22705a9 build(deps): update dependency com.google.cloud:google-cloud-shared-config to v0.8.0 (#11)
2020-06-11 03:05:07,430 autosynth [DEBUG] > Running: git checkout e7034945fbdc0e79d3c57f6e299e5c90b0f11469
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at e703494 chore(nodejs_templates): add script logging to node_library populate-secrets.sh (#618)
2020-06-11 03:05:07,449 autosynth [DEBUG] > Running: git branch -f autosynth-69
2020-06-11 03:05:07,453 autosynth [DEBUG] > Running: git checkout autosynth-69
Switched to branch 'autosynth-69'
2020-06-11 03:05:07,457 autosynth [INFO] > Running synthtool
2020-06-11 03:05:07,458 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-11 03:05:07,458 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/69/sponge_log.log
2020-06-11 03:05:07,460 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-11 03:05:07,665 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-69
nothing to commit, working tree clean
2020-06-11 03:05:07,796 synthtool [DEBUG] > Ensuring dependencies.
2020-06-11 03:05:07,808 synthtool [DEBUG] > Cloning googleapis.
2020-06-11 03:05:08,182 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-11 03:05:09,725 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.534s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-11 03:05:09,792 autosynth [ERROR] > Synthesis failed
2020-06-11 03:05:09,792 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 22705a9 build(deps): update dependency com.google.cloud:google-cloud-shared-config to v0.8.0 (#11)
2020-06-11 03:05:09,799 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-11 03:05:09,804 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 619, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 476, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 599, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 371, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 381, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
rsion}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-11 16:06:18,748 autosynth [ERROR] > Synthesis failed
2020-06-11 16:06:18,748 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-11 16:06:18,753 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-11 16:06:18,758 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-11 16:06:18,895 autosynth [DEBUG] > Running: git checkout 5f005b45498dc87aeb8cab35d72fbaae04386c24
Note: checking out '5f005b45498dc87aeb8cab35d72fbaae04386c24'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-11 16:06:18,900 autosynth [DEBUG] > Running: git checkout a0ee80e0492a03b9b2bfefb5cca7eaf17bf10438
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at a0ee80e feat: handle standardize START/END_EXCLUDE for snippets (#624)
2020-06-11 16:06:18,918 autosynth [DEBUG] > Running: git branch -f autosynth-72
2020-06-11 16:06:18,922 autosynth [DEBUG] > Running: git checkout autosynth-72
Switched to branch 'autosynth-72'
2020-06-11 16:06:18,927 autosynth [INFO] > Running synthtool
2020-06-11 16:06:18,927 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-11 16:06:18,927 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/72/sponge_log.log
2020-06-11 16:06:18,929 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-11 16:06:19,134 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-72
nothing to commit, working tree clean
2020-06-11 16:06:19,265 synthtool [DEBUG] > Ensuring dependencies.
2020-06-11 16:06:19,276 synthtool [DEBUG] > Cloning googleapis.
2020-06-11 16:06:19,625 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-11 16:06:21,422 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.788s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-11 16:06:21,466 autosynth [ERROR] > Synthesis failed
2020-06-11 16:06:21,466 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-11 16:06:21,471 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-11 16:06:21,476 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 625, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 482, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 605, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 377, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 387, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
rsion}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-12 03:03:41,889 autosynth [ERROR] > Synthesis failed
2020-06-12 03:03:41,889 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-12 03:03:41,895 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-12 03:03:41,899 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-12 03:03:42,047 autosynth [DEBUG] > Running: git checkout 5f005b45498dc87aeb8cab35d72fbaae04386c24
Note: checking out '5f005b45498dc87aeb8cab35d72fbaae04386c24'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-12 03:03:42,052 autosynth [DEBUG] > Running: git checkout a0ee80e0492a03b9b2bfefb5cca7eaf17bf10438
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at a0ee80e feat: handle standardize START/END_EXCLUDE for snippets (#624)
2020-06-12 03:03:42,071 autosynth [DEBUG] > Running: git branch -f autosynth-72
2020-06-12 03:03:42,075 autosynth [DEBUG] > Running: git checkout autosynth-72
Switched to branch 'autosynth-72'
2020-06-12 03:03:42,080 autosynth [INFO] > Running synthtool
2020-06-12 03:03:42,080 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-12 03:03:42,080 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/72/sponge_log.log
2020-06-12 03:03:42,082 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-12 03:03:42,307 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-72
nothing to commit, working tree clean
2020-06-12 03:03:42,449 synthtool [DEBUG] > Ensuring dependencies.
2020-06-12 03:03:42,461 synthtool [DEBUG] > Cloning googleapis.
2020-06-12 03:03:42,804 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-12 03:03:44,564 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.749s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-12 03:03:44,605 autosynth [ERROR] > Synthesis failed
2020-06-12 03:03:44,605 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-12 03:03:44,612 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-12 03:03:44,617 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 625, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 482, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 605, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 377, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 387, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-12 16:06:12,118 autosynth [ERROR] > Synthesis failed
2020-06-12 16:06:12,118 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-12 16:06:12,124 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-12 16:06:12,129 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-12 16:06:12,276 autosynth [DEBUG] > Running: git checkout 5f005b45498dc87aeb8cab35d72fbaae04386c24
Note: checking out '5f005b45498dc87aeb8cab35d72fbaae04386c24'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-12 16:06:12,281 autosynth [DEBUG] > Running: git checkout a0ee80e0492a03b9b2bfefb5cca7eaf17bf10438
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at a0ee80e feat: handle standardize START/END_EXCLUDE for snippets (#624)
2020-06-12 16:06:12,303 autosynth [DEBUG] > Running: git branch -f autosynth-72
2020-06-12 16:06:12,308 autosynth [DEBUG] > Running: git checkout autosynth-72
Switched to branch 'autosynth-72'
2020-06-12 16:06:12,313 autosynth [INFO] > Running synthtool
2020-06-12 16:06:12,313 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-12 16:06:12,313 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/72/sponge_log.log
2020-06-12 16:06:12,316 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-12 16:06:12,548 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-72
nothing to commit, working tree clean
2020-06-12 16:06:12,695 synthtool [DEBUG] > Ensuring dependencies.
2020-06-12 16:06:12,706 synthtool [DEBUG] > Cloning googleapis.
2020-06-12 16:06:13,379 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-12 16:06:15,249 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'protoc_docs_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "33b387245455775e0de45869c7355cc5a9e98b396a6fc43b02812a63b75fee20"
DEBUG: Call stack for the definition of repository 'protoc_docs_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:196:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.861s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-12 16:06:15,304 autosynth [ERROR] > Synthesis failed
2020-06-12 16:06:15,304 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-12 16:06:15,309 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-12 16:06:15,314 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 625, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 482, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 605, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 377, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 387, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-13 02:45:13,753 autosynth [ERROR] > Synthesis failed
2020-06-13 02:45:13,753 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-13 02:45:13,758 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-13 02:45:13,763 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-13 02:45:13,914 autosynth [DEBUG] > Running: git checkout 5f005b45498dc87aeb8cab35d72fbaae04386c24
Note: checking out '5f005b45498dc87aeb8cab35d72fbaae04386c24'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-13 02:45:13,919 autosynth [DEBUG] > Running: git checkout a0ee80e0492a03b9b2bfefb5cca7eaf17bf10438
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at a0ee80e feat: handle standardize START/END_EXCLUDE for snippets (#624)
2020-06-13 02:45:13,939 autosynth [DEBUG] > Running: git branch -f autosynth-72
2020-06-13 02:45:13,944 autosynth [DEBUG] > Running: git checkout autosynth-72
Switched to branch 'autosynth-72'
2020-06-13 02:45:13,950 autosynth [INFO] > Running synthtool
2020-06-13 02:45:13,950 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-13 02:45:13,950 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/72/sponge_log.log
2020-06-13 02:45:13,952 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-13 02:45:14,180 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-72
nothing to commit, working tree clean
2020-06-13 02:45:14,322 synthtool [DEBUG] > Ensuring dependencies.
2020-06-13 02:45:14,334 synthtool [DEBUG] > Cloning googleapis.
2020-06-13 02:45:14,702 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-13 02:45:16,426 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'protoc_docs_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "33b387245455775e0de45869c7355cc5a9e98b396a6fc43b02812a63b75fee20"
DEBUG: Call stack for the definition of repository 'protoc_docs_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:196:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.714s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-13 02:45:16,476 autosynth [ERROR] > Synthesis failed
2020-06-13 02:45:16,477 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-13 02:45:16,482 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-13 02:45:16,487 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 625, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 482, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 605, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 377, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 387, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-13 15:41:29,395 autosynth [ERROR] > Synthesis failed
2020-06-13 15:41:29,395 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-13 15:41:29,400 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-13 15:41:29,405 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-13 15:41:29,541 autosynth [DEBUG] > Running: git checkout 5f005b45498dc87aeb8cab35d72fbaae04386c24
Note: checking out '5f005b45498dc87aeb8cab35d72fbaae04386c24'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-13 15:41:29,547 autosynth [DEBUG] > Running: git checkout a0ee80e0492a03b9b2bfefb5cca7eaf17bf10438
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at a0ee80e feat: handle standardize START/END_EXCLUDE for snippets (#624)
2020-06-13 15:41:29,565 autosynth [DEBUG] > Running: git branch -f autosynth-72
2020-06-13 15:41:29,569 autosynth [DEBUG] > Running: git checkout autosynth-72
Switched to branch 'autosynth-72'
2020-06-13 15:41:29,573 autosynth [INFO] > Running synthtool
2020-06-13 15:41:29,574 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-13 15:41:29,574 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/72/sponge_log.log
2020-06-13 15:41:29,576 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-13 15:41:29,782 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-72
nothing to commit, working tree clean
2020-06-13 15:41:29,913 synthtool [DEBUG] > Ensuring dependencies.
2020-06-13 15:41:29,925 synthtool [DEBUG] > Cloning googleapis.
2020-06-13 15:41:30,542 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-13 15:41:32,077 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'protoc_docs_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "33b387245455775e0de45869c7355cc5a9e98b396a6fc43b02812a63b75fee20"
DEBUG: Call stack for the definition of repository 'protoc_docs_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:196:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.526s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-13 15:41:32,122 autosynth [ERROR] > Synthesis failed
2020-06-13 15:41:32,122 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-13 15:41:32,128 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-13 15:41:32,134 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 625, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 482, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 605, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 377, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 387, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-14 02:47:10,026 autosynth [ERROR] > Synthesis failed
2020-06-14 02:47:10,026 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-14 02:47:10,032 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-14 02:47:10,036 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-14 02:47:10,179 autosynth [DEBUG] > Running: git checkout 5f005b45498dc87aeb8cab35d72fbaae04386c24
Note: checking out '5f005b45498dc87aeb8cab35d72fbaae04386c24'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-14 02:47:10,231 autosynth [DEBUG] > Running: git checkout a0ee80e0492a03b9b2bfefb5cca7eaf17bf10438
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at a0ee80e feat: handle standardize START/END_EXCLUDE for snippets (#624)
2020-06-14 02:47:10,250 autosynth [DEBUG] > Running: git branch -f autosynth-72
2020-06-14 02:47:10,254 autosynth [DEBUG] > Running: git checkout autosynth-72
Switched to branch 'autosynth-72'
2020-06-14 02:47:10,258 autosynth [INFO] > Running synthtool
2020-06-14 02:47:10,258 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-14 02:47:10,258 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/72/sponge_log.log
2020-06-14 02:47:10,260 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-14 02:47:10,480 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-72
nothing to commit, working tree clean
2020-06-14 02:47:10,614 synthtool [DEBUG] > Ensuring dependencies.
2020-06-14 02:47:10,626 synthtool [DEBUG] > Cloning googleapis.
2020-06-14 02:47:10,971 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-14 02:47:12,657 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"
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/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:76:1
DEBUG: Rule 'protoc_docs_plugin' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "33b387245455775e0de45869c7355cc5a9e98b396a6fc43b02812a63b75fee20"
DEBUG: Call stack for the definition of repository 'protoc_docs_plugin' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:196:1
DEBUG: Rule 'com_googleapis_gapic_generator_go' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "12bfed7873f085093cd60615bd113178ecf36396af0c2ca25e6cd4d4bebdd198"
DEBUG: Call stack for the definition of repository 'com_googleapis_gapic_generator_go' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:256:1
DEBUG: Rule 'gapic_generator_typescript' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "161462fb86a7241006b60f6c4c816924ddcff08b8691f258f3804cfc6714dfde"
DEBUG: Call stack for the definition of repository 'gapic_generator_typescript' which is a http_archive (rule definition at /home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/external/bazel_tools/tools/build_defs/repo/http.bzl:296:16):
 - <builtin>
 - /home/kbuilder/.cache/synthtool/googleapis/WORKSPACE:275:1
ERROR: Skipping '//google/iam/v1:google-iam-v1-java': no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
WARNING: Target pattern parsing failed.
ERROR: no such target '//google/iam/v1:google-iam-v1-java': target 'google-iam-v1-java' not declared in package 'google/iam/v1' defined by /home/kbuilder/.cache/synthtool/googleapis/google/iam/v1/BUILD.bazel
INFO: Elapsed time: 1.677s
INFO: 0 processes.

Traceback (most recent call last):
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 102, in <module>
    main()
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/tmpfs/src/github/synthtool/env/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/__main__.py", line 94, in main
    spec.loader.exec_module(synth_module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/kbuilder/.cache/synthtool/java-iam/synth.py", line 31, in <module>
    bazel_target=f'//google/iam/{version}:google-iam-{version}-java',
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 61, in java_library
    return self._generate_code(service, version, "java", **kwargs)
  File "/tmpfs/src/github/synthtool/synthtool/gcp/gapic_bazel.py", line 180, in _generate_code
    shell.run(bazel_run_args)
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 39, in run
    raise exc
  File "/tmpfs/src/github/synthtool/synthtool/shell.py", line 33, in run
    encoding="utf-8",
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-14 02:47:12,704 autosynth [ERROR] > Synthesis failed
2020-06-14 02:47:12,704 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-14 02:47:12,710 autosynth [DEBUG] > Running: git checkout autosynth
Switched to branch 'autosynth'
2020-06-14 02:47:12,714 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 625, in <module>
    main()
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 482, in main
    return _inner_main(temp_dir)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 605, in _inner_main
    commit_count = synthesize_loop(x, multiple_prs, change_pusher, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 377, in synthesize_loop
    synthesize_inner_loop(toolbox, synthesizer)
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 387, in synthesize_inner_loop
    synthesizer, len(toolbox.versions) - 1
  File "/tmpfs/src/github/synthtool/autosynth/synth.py", line 266, in synthesize_version_in_new_branch
    synthesizer.synthesize(synth_log_path, self.environ)
  File "/tmpfs/src/github/synthtool/autosynth/synthesizer.py", line 120, in synthesize
    synth_proc.check_returncode()  # Raise an exception.
  File "/home/kbuilder/.pyenv/versions/3.6.9/lib/python3.6/subprocess.py", line 389, in check_returncode
    self.stderr)
subprocess.CalledProcessError: Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.

Google internal developers can see the full log here.

Autosynth is still having trouble generating java-iam. :sob:
Here's the output from running synth.py:
.9/lib/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['bazel', '--max_idle_secs=60', 'build', '//google/iam/v1:google-iam-v1-java']' returned non-zero exit status 1.
2020-06-14 15:54:19,243 autosynth [ERROR] > Synthesis failed
2020-06-14 15:54:19,244 autosynth [DEBUG] > Running: git reset --hard HEAD
HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-14 15:54:19,249 autosynth [DEBUG] > Running: git checkout autosynth-self
Switched to branch 'autosynth-self'
2020-06-14 15:54:19,255 autosynth [ERROR] > Command '['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']' returned non-zero exit status 1.
2020-06-14 15:54:19,589 autosynth [DEBUG] > Running: git checkout 5f005b45498dc87aeb8cab35d72fbaae04386c24
Note: checking out '5f005b45498dc87aeb8cab35d72fbaae04386c24'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

  git checkout -b <new-branch-name>

HEAD is now at 5f005b4 deps: update dependency com.google.protobuf:protobuf-bom to v3.12.2 (#8)
2020-06-14 15:54:19,638 autosynth [DEBUG] > Running: git checkout a0ee80e0492a03b9b2bfefb5cca7eaf17bf10438
Previous HEAD position was 04cb397 chore: add labels with context info (#518)
HEAD is now at a0ee80e feat: handle standardize START/END_EXCLUDE for snippets (#624)
2020-06-14 15:54:19,658 autosynth [DEBUG] > Running: git branch -f autosynth-72
2020-06-14 15:54:19,663 autosynth [DEBUG] > Running: git checkout autosynth-72
Switched to branch 'autosynth-72'
2020-06-14 15:54:19,668 autosynth [INFO] > Running synthtool
2020-06-14 15:54:19,669 autosynth [INFO] > ['/tmpfs/src/github/synthtool/env/bin/python3', '-m', 'synthtool', '--metadata', 'synth.metadata', 'synth.py', '--']
2020-06-14 15:54:19,669 autosynth [DEBUG] > log_file_path: /tmpfs/src/github/synthtool/logs/googleapis/java-iam/72/sponge_log.log
2020-06-14 15:54:19,672 autosynth [DEBUG] > Running: /tmpfs/src/github/synthtool/env/bin/python3 -m synthtool --metadata synth.metadata synth.py --
2020-06-14 15:54:19,919 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/java-iam/synth.py.
On branch autosynth-72
nothing to commit, working tree clean
2020-06-14 15:54:20,078 synthtool [DEBUG] > Ensuring dependencies.
2020-06-14 15:54:20,091 synthtool [DEBUG] > Cloning googleapis.
2020-06-14 15:54:20,499 synthtool [DEBUG] > Generating code for: //google/iam/v1:google-iam-v1-java.
2020-06-14 15:54:22,430 synthtool [ERROR] > Failed executing bazel --max_idle_secs=60 build //google/iam/v1:google-iam-v1-java:

Loading:
Loading: 0 packages loaded
Loading: 0 packages loaded
DEBUG: Rule 'com_google_api_codegen' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "855b1960d5972f76da6bee2f5b6213540cf11e72c887cec0038e573f14e0a80b"