RuntimeError: Job process returned error code 1

Traceback (most recent call last):
  File "/usr/local/bin/run_openkim_job.py", line 546, in <module>
    execute_in_place(runner, runner_driver, subject, subject_driver, env)
  File "/usr/local/bin/run_openkim_job.py", line 396, in execute_in_place
    raise RuntimeError(f"Job process returned error code {retcode}")
RuntimeError: Job process returned error code 1

output/pipeline.stdout:
-----------------------

output/pipeline.stderr:
-----------------------
  File "/usr/lib/python3.8/unittest/__init__.py", line 64, in <module>    from .loader import (TestLoader, defaultTestLoader, makeSuite, getTestCaseNames,  File "/usr/lib/python3.8/unittest/loader.py", line 20, in <module>    VALID_MODULE_NAME = re.compile(r'[_a-z]\w*\.py$', re.IGNORECASE)  File "/usr/lib/python3.8/re.py", line 252, in compile    return _compile(pattern, flags)  File "/usr/lib/python3.8/re.py", line 304, in _compile    p = sre_compile.compile(pattern, flags)  File "/usr/lib/python3.8/sre_compile.py", line 768, in compile    code = _code(p, flags)  File "/usr/lib/python3.8/sre_compile.py", line 607, in _code    _compile(code, p.data, flags)  File "/usr/lib/python3.8/sre_compile.py", line 120, in _compile    charset, hascased = _optimize_charset(av, iscased, tolower, fixes)  File "/usr/lib/python3.8/sre_compile.py", line 320, in _optimize_charset    charmap += b'\0' * 0xff00MemoryErrorCommand exited with non-zero status 1{"realtime":2.50,"usertime":8.28,"systime":18.40,"memmax":58888,"memavg":0}

output/kim.log:
---------------