skip cashing for exceptions #66

Job	Run time
pytester (3.8, ubuntu-latest, local)	3m 23s
pytester (3.8, ubuntu-latest, db)	1m 10s
pytester (3.8, macOS-latest, local)	3m 58s
pytester (3.8, windows-latest, local)	4m 39s
pytester (3.8, windows-latest, db)	3m 41s
pytester (3.9, ubuntu-latest, local)	3m 22s
pytester (3.9, ubuntu-latest, db)	1m 14s
pytester (3.9, macOS-latest, local)	3m 31s
pytester (3.9, windows-latest, local)	4m 19s
pytester (3.9, windows-latest, db)	2m 25s
pytester (3.10, ubuntu-latest, local)	3m 25s
pytester (3.10, ubuntu-latest, db)	1m 9s
pytester (3.10, macOS-latest, local)	3m 29s
pytester (3.10, windows-latest, local)	4m 22s
pytester (3.10, windows-latest, db)	3m 58s
pytester (3.11, ubuntu-latest, local)	3m 21s
pytester (3.11, ubuntu-latest, db)	1m 11s
pytester (3.11, macOS-latest, local)	3m 27s
pytester (3.11, windows-latest, local)	4m 7s
pytester (3.11, windows-latest, db)	3m 46s
pytester (3.12, ubuntu-latest, local)	3m 21s
pytester (3.12, ubuntu-latest, db)	1m 14s
pytester (3.12, macOS-latest, local)	3m 32s
pytester (3.12, windows-latest, local)	3m 58s
pytester (3.12, windows-latest, db)	4m 3s
testing-guardian	1s
	1h 20m 6s

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