Merge pull request #440 from ruby/rmf-outputs #1502

Job	Run time
benchmark-ractor (head)	12m 18s
test (head)	51s
test (truffleruby)	1m 9s
benchmark-ractor (truffleruby)	19s
benchmark-ractor-only (head)	47s
test (ruby)	57s
benchmark-run-once	1m 32s
benchmark-ractor-only (truffleruby)	11s
benchmark-ractor (ruby)	11m 44s
benchmark-graph	46s
benchmark-ractor-only (ruby)	56s
benchmark-default (head)	11m 19s
benchmark-default (truffleruby)	26s
benchmark-default (ruby)	11m 25s
all-tests	3s
	54m 43s

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