Monitor stack #648

Job	Run time
rust_ci (macos-latest, stable)	1m 11s
rust_ci (ubuntu-latest, beta)	56s
rust_ci (windows-latest, beta)	1m 47s
rust_ci (ubuntu-latest, stable)	1m 3s
rust_ci (macos-latest, beta)	1m 12s
rust_ci (windows-latest, stable)	2m 34s
	8m 43s

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