Merge branch 'integration-test-system' #128

Job	Run time
lint (stable, ubuntu-latest)	45s
test (stable, ubuntu-latest)	29s
build (stable, ubuntu-latest)	2m 9s
test (stable, windows-latest)	3m 17s
build (stable, windows-latest)	6m 15s
test (stable, macos-latest)	43s
build (stable, macos-latest)	3m 52s
test (nightly, ubuntu-latest)	1m 17s
build (nightly, ubuntu-latest)	2m 59s
test (nightly, windows-latest)	4m 17s
build (nightly, windows-latest)	6m 55s
test (nightly, macos-latest)	2m 14s
build (nightly, macos-latest)	8m 16s
	43m 28s

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