Tests

Fail fast when user tries to generate reports with parallel workers #21979

Job	Run time
Test mypyc suite with 32-bit Python	10m 11s
Formatting and code style with Black + ruff	2m 0s
Parallel tests with py314-ubuntu, mypyc-compiled	11m 40s
Test suite with py312-ubuntu	9m 36s
Type check our own code (py310-ubuntu)	1m 9s
Test suite with py311-ubuntu	9m 48s
Test suite with py310-ubuntu, mypyc-compiled	12m 0s
Test suite with py314-windows-64	11m 56s
Type check our own code (py310-windows-64)	1m 45s
Parallel tests with py314-windows-64, interpreted	11m 15s
mypyc runtime tests with py310-ubuntu	6m 19s
mypyc runtime tests with py313-macos	5m 11s
Test suite with py314t-ubuntu, mypyc-compiled	12m 6s
Test suite with py313-ubuntu, mypyc-compiled	12m 2s
Test suite with py314-ubuntu, mypyc-compiled	11m 38s
Parallel tests with py314-ubuntu, interpreted	11m 40s
	2h 20m 16s

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