Rust

More test coverage for mutants #1105

Job	Run time
clippy	17s
pr-mutants	4m 5s
tests (ubuntu-latest, stable)	1m 12s
rustfmt	17s
tests (ubuntu-latest, nightly)	1m 6s
tests (ubuntu-latest, 1.73)	1m 7s
tests (ubuntu-latest, s3, stable)	1m 25s
tests (ubuntu-latest, s3, nightly)	1m 25s
tests (ubuntu-latest, s3, 1.73)	1m 20s
tests (windows-latest, stable)	2m 20s
tests (windows-latest, nightly)	2m 32s
tests (windows-latest, 1.73)	2m 27s
tests (windows-latest, s3, stable)	2m 32s
tests (windows-latest, s3, nightly)	2m 42s
tests (windows-latest, s3, 1.73)	2m 43s
tests (macOS-latest, stable)	3m 30s
tests (macOS-latest, nightly)	3m 20s
tests (macOS-latest, 1.73)	3m 28s
tests (macOS-latest, s3, stable)	3m 6s
tests (macOS-latest, s3, nightly)	3m 33s
tests (macOS-latest, s3, 1.73)	4m 56s
cargo-mutants	0s
	49m 23s

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