google-cloud-compute-v1beta generation failure

[GautamSharda]

Librarian generation for google-cloud-compute-v1beta failed in PR#14878

[parthea]

For google-cloud-compute, tests seem to hang. I'm investigating

........................................................................ [ 63%]
--
  | Traceback (most recent call last):
  | File "/app/./cli.py", line 907, in _run_nox_sessions
  | _run_individual_session(nox_session, library_id, repo)
  | ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/app/./cli.py", line 932, in _run_individual_session
  | result = subprocess.run(command, text=True, check=True, timeout=600)
  | File "/usr/local/lib/python3.14/subprocess.py", line 556, in run
  | stdout, stderr = process.communicate(input, timeout=timeout)
  | ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/usr/local/lib/python3.14/subprocess.py", line 1220, in communicate
  | stdout, stderr = self._communicate(input, endtime, timeout)
  | ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/usr/local/lib/python3.14/subprocess.py", line 2152, in _communicate
  | self.wait(timeout=self._remaining_time(endtime))
  | ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/usr/local/lib/python3.14/subprocess.py", line 1278, in wait
  | return self._wait(timeout=timeout)
  | ~~~~~~~~~~^^^^^^^^^^^^^^^^^
  | File "/usr/local/lib/python3.14/subprocess.py", line 2056, in _wait
  | raise TimeoutExpired(self.args, timeout)
  | subprocess.TimeoutExpired: Command '['nox', '-s', "unit-3.14(protobuf_implementation='upb')", '-f', '/repo/packages/google-cloud-compute-v1beta/noxfile.py']' timed out after 600 seconds
  |  
  | The above exception was the direct cause of the following exception:
  |  
  | Traceback (most recent call last):
  | File "/app/./cli.py", line 1092, in handle_build
  | _run_nox_sessions(library_id, repo)
  | ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  | File "/app/./cli.py", line 910, in _run_nox_sessions
  | raise ValueError(f"Failed to run the nox session: {current_session}") from e
  | ValueError: Failed to run the nox session: unit-3.14(protobuf_implementation='upb')
  |  
  | The above exception was the direct cause of the following exception:
  |  
  | Traceback (most recent call last):
  | File "/app/./cli.py", line 1593, in <module>
  | args.func(librarian=args.librarian, repo=args.repo)
  | ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/app/./cli.py", line 1094, in handle_build
  | raise ValueError("Build failed.") from e
  | ValueError: Build failed.

[parthea]

I'm unable to reproduce this locally. I need to debug using the automation

[ldetmer]

FYI this is still hapening in latest generation PR

Traceback (most recent call last):
--
  | File "/app/./cli.py", line 908, in _run_nox_sessions
  | _run_individual_session(nox_session, library_id, repo, is_mono_repo)
  | ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/app/./cli.py", line 941, in _run_individual_session
  | result = subprocess.run(command, text=True, check=True, timeout=600)
  | File "/usr/local/lib/python3.14/subprocess.py", line 556, in run
  | stdout, stderr = process.communicate(input, timeout=timeout)
  | ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/usr/local/lib/python3.14/subprocess.py", line 1220, in communicate
  | stdout, stderr = self._communicate(input, endtime, timeout)
  | ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/usr/local/lib/python3.14/subprocess.py", line 2152, in _communicate
  | self.wait(timeout=self._remaining_time(endtime))
  | ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/usr/local/lib/python3.14/subprocess.py", line 1278, in wait
  | return self._wait(timeout=timeout)
  | ~~~~~~~~~~^^^^^^^^^^^^^^^^^
  | File "/usr/local/lib/python3.14/subprocess.py", line 2056, in _wait
  | raise TimeoutExpired(self.args, timeout)
  | subprocess.TimeoutExpired: Command '['nox', '-s', "unit-3.14(protobuf_implementation='upb')", '-f', '/repo/packages/google-cloud-compute-v1beta/noxfile.py']' timed out after 600 seconds
  |  
  | The above exception was the direct cause of the following exception:
  |  
  | Traceback (most recent call last):
  | File "/app/./cli.py", line 1119, in handle_build
  | _run_nox_sessions(library_id, repo, is_mono_repo)
  | ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/app/./cli.py", line 911, in _run_nox_sessions
  | raise ValueError(f"Failed to run the nox session: {current_session}") from e
  | ValueError: Failed to run the nox session: unit-3.14(protobuf_implementation='upb')
  |  
  | The above exception was the direct cause of the following exception:
  |  
  | Traceback (most recent call last):
  | File "/app/./cli.py", line 1618, in <module>
  | args.func(librarian=args.librarian, repo=args.repo)
  | ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/app/./cli.py", line 1121, in handle_build
  | raise ValueError("Build failed.") from e
  | ValueError: Build failed.
  | time=2025-11-19T08:39:16.009Z level=INFO msg="=== Docker end ================================================================="
  | time=2025-11-19T08:39:16.019Z level=INFO msg="restoring uncommitted changes" paths=packages/google-cloud-compute-v1beta
  | time=2025-11-19T08:39:19.239Z level=INFO msg="cleaning untracked files" paths=packages/google-cloud-compute-v1beta
  | time=2025-11-19T08:39:57.439Z level=ERROR msg="failed to generate library" id=google-cloud-compute-v1beta err="exit status 1"

see build log

[parthea]

I'm going to close this issue since we're starting the migration from legacylibrarian to librarian in google-cloud-python. I'll open a new issue if the problem still appears with librarian.