In this test, I see an emergent failure.
Collecting black
Downloading black-20.8b1.tar.gz (1.1 MB)
Installing build dependencies: started
Installing build dependencies: finished with status 'done'
Getting requirements to build wheel: started
Getting requirements to build wheel: finished with status 'done'
Preparing wheel metadata: started
Preparing wheel metadata: finished with status 'done'
ERROR: Requested black from https://files.pythonhosted.org/packages/dc/7b/5a6bbe89de849f28d7c109f5ea87b65afa5124ad615f3419e71beb29dc96/black-20.8b1.tar.gz#sha256=1c02557aa099101b9d21496f8a914e9ed2222ef70336404eeeac8edba836fbea (from pytest-black>=0.3.7->importlib-resources==0.1) has different version in metadata: '20.8'
I suspect the issue is the change in #2533.
In this test, I see an emergent failure.
I suspect the issue is the change in #2533.