Tests

Upgrade cargo_metadata to 0.19 (#467) #1713

Job	Run time
quick-test	3m 43s
pr-mutants	0s
cargo-mutants (0, cargo)	13m 9s
test (macOS-latest, stable)	5m 32s
tests-from-tarball (ubuntu-latest)	2m 28s
cargo-mutants (1, cargo)	7m 52s
test (macOS-latest, nightly)	8m 11s
cargo-mutants (2, cargo)	16m 18s
test (macOS-latest, 1.78)	6m 27s
cargo-mutants (3, cargo)	12m 59s
test (ubuntu-latest, stable)	5m 27s
cargo-mutants (4, cargo)	8m 16s
test (ubuntu-latest, nightly)	6m 25s
cargo-mutants (5, cargo)	9m 28s
test (ubuntu-latest, 1.78)	5m 38s
cargo-mutants (6, cargo)	10m 56s
test (windows-latest, stable)	9m 3s
cargo-mutants (7, cargo)	7m 56s
test (windows-latest, nightly)	11m 56s
cargo-mutants (8, cargo)	8m 30s
test (windows-latest, 1.78)	8m 30s
cargo-mutants (9, cargo)	12m 49s
overall-result	1s
	3h 1m 34s

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