Tests

Better report mutation in trait default fns #1142

Job	Run time
incremental-mutants	5m 20s
build (macOS-latest, stable)	2m 4s
cargo-mutants	1h 16m 24s
build (macOS-latest, nightly)	3m 8s
build (macOS-latest, 1.70)	3m 40s
build (ubuntu-latest, stable)	1m 26s
build (ubuntu-latest, nightly)	1m 22s
build (ubuntu-latest, 1.70)	1m 46s
build (windows-latest, stable)	3m 19s
build (windows-latest, nightly)	2m 54s
build (windows-latest, 1.70)	2m 46s
	1h 44m 9s

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