Check supported rust versions on CI #2447

Job	Run time
docs	21s
check-cfg	21s
minimal	11s
msrv	56s
quickchecking	13s
rustfmt-clippy	26s
test (ubuntu-latest, 9.0, 1, 0, 0, 0, 0)	2m 12s
test (ubuntu-latest, 9.0, 1, 0, 0, 1, 0)	1m 46s
test-expectations (ubuntu-latest)	48s
test-expectations (macos-12)	1m 4s
test (ubuntu-latest, 9.0, 1, 0, 1, 0, 0)	1m 54s
test (ubuntu-latest, 9.0, 1, 0, 1, 1, 0)	1m 44s
test-book	10s
test (ubuntu-latest, 9.0, 1, 1, 0, 0, 0)	2m 17s
test (ubuntu-latest, 9.0, 1, 1, 0, 1, 0)	2m 25s
test (ubuntu-latest, 9.0, 1, 1, 1, 0, 0)	2m 15s
test (ubuntu-latest, 9.0, 1, 1, 1, 1, 0)	2m 12s
test (ubuntu-latest, 16.0, 1, 0, 0, 0, 0)	3m 59s
test (ubuntu-latest, 16.0, 1, 0, 0, 1, 0)	4m 12s
test (ubuntu-latest, 16.0, 1, 0, 1, 0, 0)	4m 1s
test (ubuntu-latest, 16.0, 1, 0, 1, 1, 0)	4m 19s
test (ubuntu-latest, 16.0, 1, 1, 0, 0, 0)	5m 0s
test (ubuntu-latest, 16.0, 1, 1, 0, 1, 0)	4m 59s
test (ubuntu-latest, 16.0, 1, 1, 1, 0, 0)	4m 50s
test (ubuntu-latest, 16.0, 1, 1, 1, 1, 0)	4m 44s
test (ubuntu-latest, 16.0, 0, 0, 1)	2m 6s
test (macos-12, 9.0, 0, 0, 0)	1m 42s
success	1s
	1h 1m 8s

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