more specs #44

Job	Run time
test (ubuntu-latest, 2.5)	23s
test (ubuntu-latest, 2.6)	32s
test (ubuntu-latest, 2.7)	24s
test (ubuntu-latest, 3.0)	13s
test (ubuntu-latest, 3.1)	16s
test (ubuntu-latest, 3.2)	12s
test (ubuntu-latest, head)	9s
test (ubuntu-latest, debug)	37s
test (ubuntu-latest, truffleruby)	33s
test (ubuntu-latest, truffleruby-head)	1m 3s
test (ubuntu-latest, jruby)	53s
test (ubuntu-latest, jruby-head)	51s
test (macos-latest, 2.5)	1m 12s
test (macos-latest, 2.6)	57s
test (macos-latest, 2.7)	51s
test (macos-latest, 3.0)	17s
test (macos-latest, 3.1)	17s
test (macos-latest, 3.2)	1m 23s
test (macos-latest, head)	26s
test (macos-latest, debug)	41s
test (macos-latest, truffleruby)	1m 13s
test (macos-latest, truffleruby-head)	1m 36s
test (macos-latest, jruby)	1m 21s
test (macos-latest, jruby-head)	1m 32s
coveralls	1m 11s
	19m 3s

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