Tests

Calculate ETA from only the time to test mutants #1696

Job	Run time
quick-test	2m 42s
tests-from-tarball (ubuntu-latest)	2m 19s
test (macOS-latest, stable)	5m 45s
pr-mutants (cargo)	20s
test (macOS-latest, nightly)	7m 21s
cargo-mutants (0, cargo)	10m 44s
pr-mutants (nextest)	23s
test (macOS-latest, 1.74)	6m 17s
cargo-mutants (1, cargo)	7m 3s
test (ubuntu-latest, stable)	6m 10s
cargo-mutants (2, cargo)	15m 38s
cargo-mutants (3, cargo)	12m 28s
cargo-mutants (4, cargo)	9m 29s
cargo-mutants (5, cargo)	8m 58s
test (ubuntu-latest, nightly)	5m 22s
cargo-mutants (6, cargo)	10m 1s
test (ubuntu-latest, 1.74)	6m 45s
cargo-mutants (7, cargo)	9m 27s
test (windows-latest, stable)	11m 34s
cargo-mutants (8, cargo)	8m 50s
test (windows-latest, nightly)	10m 44s
cargo-mutants (9, cargo)	12m 56s
test (windows-latest, 1.74)	10m 12s
overall-result	1s
	3h 1m 29s

Provide feedback