Avoid filename collision in the monorepo structure #286

Job	Run time
Miri	1m 27s
Clippy (stable)	25s
Rustfmt (stable)	4s
Check (stable)	12s
Test Suite	5m 48s
Test Suite (--no-default-features)	5m 49s
Test Suite (ubuntu-latest)	45s
Test Suite (--features track-caller)	3m 55s
Test Suite (stable)	48s
Test Suite (windows-latest)	1m 9s
Test Suite (--features auto-install)	3m 50s
Test Suite (stable, --no-default-features)	56s
Test Suite (macOS-latest)	55s
Test Suite (stable, --features track-caller)	27s
Test Suite (stable, --features pyo3)	53s
Test Suite (stable, --features auto-install)	33s
Test Suite (stable, --all-features)	30s
Test Suite (beta)	1m 10s
Test Suite (beta, --no-default-features)	33s
Test Suite (beta, --features track-caller)	52s
Test Suite (beta, --features pyo3)	1m 1s
Test Suite (beta, --features auto-install)	1m 7s
Test Suite (beta, --all-features)	57s
Test Suite (nightly)	41s
Test Suite (nightly, --no-default-features)	41s
Test Suite (nightly, --features track-caller)	1m 26s
Test Suite (nightly, --features pyo3)	50s
Test Suite (nightly, --features auto-install)	1m 22s
Test Suite (nightly, --all-features)	42s
	39m 48s

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