Arvados

This test fails consistently on my Debian 12 system running Python 3.11 (from the Debian package) or Python 3.8 (built from source):

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FAIL: test_disk_cache_cap (tests.test_keep_client.KeepDiskCacheTestCase.test_disk_cache_cap)
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Traceback (most recent call last):
  File "/home/brett/Curii/arvados/sdk/python/.eggs/mock-3.0.5-py3.11.egg/mock/mock.py", line 1330, in patched
    return func(*args, **keywargs)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/brett/Curii/arvados/sdk/python/tests/test_keep_client.py", line 1700, in test_disk_cache_cap
    self.assertFalse(os.path.exists(os.path.join(self.disk_cache_dir, self.locator[0:3], self.locator+".keepcacheblock")))
AssertionError: True is not false

This might be specific to my system and a non-issue but looking at the test I'm skeptical. My first guess is that something is changing the ordering of things somewhere such that KeepBlockCache removes the more recent block, not the first one.