Tests

Calculate ETA from only the time to test mutants (#462) #1698

Job	Run time
quick-test	2m 36s
test (macOS-latest, stable)	5m 59s
tests-from-tarball (ubuntu-latest)	2m 21s
pr-mutants	0s
cargo-mutants (0, cargo)	11m 3s
test (macOS-latest, nightly)	7m 5s
test (macOS-latest, 1.74)	6m 45s
cargo-mutants (1, cargo)	6m 52s
test (ubuntu-latest, stable)	6m 22s
cargo-mutants (2, cargo)	16m 2s
cargo-mutants (3, cargo)	12m 11s
test (ubuntu-latest, nightly)	5m 34s
cargo-mutants (4, cargo)	9m 21s
test (ubuntu-latest, 1.74)	6m 41s
cargo-mutants (5, cargo)	8m 50s
test (windows-latest, stable)	11m 30s
cargo-mutants (6, cargo)	10m 12s
test (windows-latest, nightly)	10m 48s
cargo-mutants (7, cargo)	9m 19s
test (windows-latest, 1.74)	10m 23s
cargo-mutants (8, cargo)	8m 47s
cargo-mutants (9, cargo)	12m 36s
overall-result	1s
	3h 1m 18s

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