standalone job fails because "TASK [list_skipped : List skipped tests]" crashes

[Takashi Kajinami]

Description
===========
Currently tripleo jobs in puppet repos continuously fails because of the failure in "TASK [list_skipped : List skipped tests]"

Example: https://zuul.opendev.org/t/openstack/build/69d61a362a284745b1fd6fc484c2ff27
```
TASK [list_skipped : List skipped tests] ***************************************
Sunday 29 August 2021 10:52:43 +0000 (0:00:00.156) 0:37:35.139 *********
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: TypeError: 'EntryPoint' object is not subscriptable
fatal: [undercloud -> localhost]: FAILED! => {
    "changed": false,
    "rc": 1
}

MSG:

MODULE FAILURE
See stdout/stderr for the exact error

MODULE_STDERR:

Traceback (most recent call last):
  File "/home/zuul/workspace/.quickstart/lib/python3.6/site-packages/stevedore/_cache.py", line 159, in _get_data_for_path
    with open(filename, 'r') as f:
FileNotFoundError: [Errno 2] No such file or directory: '/home/zuul/.cache/python-entrypoints/e54a2d9eb9ba9f40ea768e0f3b0689af38f3fe0fdb4356ac4e0ec2d0b4001513'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 102, in <module>
  File "<stdin>", line 94, in _ansiballz_main
  File "<stdin>", line 40, in invoke_module
  File "/usr/lib64/python3.6/runpy.py", line 205, in run_module
    return _run_module_code(code, init_globals, run_name, mod_spec)
  File "/usr/lib64/python3.6/runpy.py", line 96, in _run_module_code
    mod_name, mod_spec, pkg_name, script_name)
  File "/usr/lib64/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/tmp/ansible_list_skipped_payload_97ovn3g_/ansible_list_skipped_payload.zip/ansible/modules/list_skipped.py", line 137, in <module>
  File "/tmp/ansible_list_skipped_payload_97ovn3g_/ansible_list_skipped_payload.zip/ansible/modules/list_skipped.py", line 133, in main
  File "/tmp/ansible_list_skipped_payload_97ovn3g_/ansible_list_skipped_payload.zip/ansible/modules/list_skipped.py", line 117, in run_module
  File "/home/zuul/workspace/.quickstart/lib/python3.6/site-packages/cliff/display.py", line 30, in __init__
    self._formatter_plugins = self._load_formatter_plugins()
  File "/home/zuul/workspace/.quickstart/lib/python3.6/site-packages/cliff/display.py", line 44, in _load_formatter_plugins
    invoke_on_load=True,
  File "/home/zuul/workspace/.quickstart/lib/python3.6/site-packages/stevedore/extension.py", line 136, in __init__
    verify_requirements)
  File "/home/zuul/workspace/.quickstart/lib/python3.6/site-packages/stevedore/extension.py", line 218, in _load_plugins
    for ep in self.list_entry_points():
  File "/home/zuul/workspace/.quickstart/lib/python3.6/site-packages/stevedore/extension.py", line 207, in list_entry_points
    eps = list(_cache.get_group_all(self.namespace))
  File "/home/zuul/workspace/.quickstart/lib/python3.6/site-packages/stevedore/_cache.py", line 179, in get_group_all
    data = self._get_data_for_path(path)
  File "/home/zuul/workspace/.quickstart/lib/python3.6/site-packages/stevedore/_cache.py", line 162, in _get_data_for_path
    data = _build_cacheable_data(path)
  File "/home/zuul/workspace/.quickstart/lib/python3.6/site-packages/stevedore/_cache.py", line 119, in _build_cacheable_data
    item = ep[:] # convert namedtuple to tuple
TypeError: 'EntryPoint' object is not subscriptable
```

[Takashi Kajinami (kajinamit)]

It seems the job now succeeds.
 https://review.opendev.org/c/openstack/puppet-oslo/+/806485

Waiting for the second patch to be sure.
 https://review.opendev.org/c/openstack/puppet-oslo/+/806483/

[Takashi Kajinami (kajinamit)]

The tripleo job for the second patch passed, so it is likely that the issue was a temporal one.

[Takashi Kajinami (kajinamit)]

I'll close this as Invalid because we no longer observe the issue.