Run tests #151

Job	Run time
doctest (1.10, ubuntu-latest)	35m 24s
doctest (1.11-nightly, ubuntu-latest)	30m 19s
test (1.6, short, ubuntu-latest)	1h 31m 23s
doctest (nightly, ubuntu-latest)	31m 59s
test (1.6, long, ubuntu-latest)	58m 28s
doctest (1.10, ubuntu-latest, depwarn=error)	34m 4s
test (1.10, short, ubuntu-latest)	1h 15m 58s
doctest (1.10, macOS, RPTU)	1s
test (1.10, long, ubuntu-latest)	46m 12s
test (1.11-nightly, short, ubuntu-latest)	1h 24m 41s
test (1.11-nightly, long, ubuntu-latest)	57m 4s
test (nightly, short, ubuntu-latest)	2h 30m 14s
test (nightly, long, ubuntu-latest)	1h 3m 16s
test (1.10, short, ubuntu-latest, depwarn=error)	1h 11m 53s
test (1.10, long, ubuntu-latest, depwarn=error)	48m 26s
test (1.10, short, macOS, RPTU)	1s
test (1.10, long, macOS, RPTU)	1s
test (1.10, book, ubuntu-latest)	53m 53s
test (nightly, book, ubuntu-latest)	13m 30s
	15h 46m 47s

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