12:13:11.82 [ERROR] 1 Exception encountered:

Engine traceback:
  in select
  in pants.core.goals.lint.lint
  in pants.backend.python.lint.black.rules.black_fmt (black)
  in pants.engine.process.fallible_to_exec_result_or_raise
Traceback (most recent call last):
  File "/home/runner/work/pants/pants/src/python/pants/engine/process.py", line 277, in fallible_to_exec_result_or_raise
    process_cleanup=process_cleanup.val,
pants.engine.process.ProcessExecutionFailure: Process 'Run Black on 378 files.' failed with exit code 2.
stdout:

stderr:
/home/runner/.cache/pants/named_caches/pex_root/venvs/s/ebe319c2/venv/bin/python3.7: can't open file '/home/runner/.cache/pants/named_caches/pex_root/venvs/cf6b38d9cd154a11053eb2724bfc643f8527867d/54760e9ba796aece74c5e340e9be4f7ee84bae47/pex': [Errno 2] No such file or directory