Another failure:

https://buildbot.python.org/all/#/builders/103/builds/2688/steps/6/logs/stdio

======================================================================
FAIL: test_list_cases (test.test_regrtest.ArgsTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.installed/build/target/lib/python3.9/test/test_regrtest.py", line 915, in test_list_cases
    self.assertEqual(output.splitlines(), all_methods)
AssertionError: Lists differ: ['tes[73 chars]hod2', "/buildbot/buildarea/cpython/3.x.ware-g[305 chars]th:'] != ['tes[73 chars]hod2']
First list contains 2 additional elements.
First extra element 2:
"/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.installed/build/target/lib/python3.9/test/support/__init__.py:1058: RuntimeWarning: tests may fail, unable to create temporary directory '/buildbot/tmp/tmpdir/test_python_5670': [Errno 17] File exists: '/buildbot/tmp/tmpdir/test_python_5670'"
  ['test_regrtest_noop8.Tests.test_method1',
-  'test_regrtest_noop8.Tests.test_method2',
?                                          ^
+  'test_regrtest_noop8.Tests.test_method2']
?                                          ^
-  '/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.installed/build/target/lib/python3.9/test/support/__init__.py:1058: '
-  'RuntimeWarning: tests may fail, unable to create temporary directory '
-  "'/buildbot/tmp/tmpdir/test_python_5670': [Errno 17] File exists: "
-  "'/buildbot/tmp/tmpdir/test_python_5670'",
-  '  with temp_dir(path=name, quiet=quiet) as temp_path:']
----------------------------------------------------------------------
Ran 73 tests in 35.451s
FAILED (failures=1, skipped=5)
test test_regrtest failed
1 test failed again:
    test_regrtest