ci #1564

Job	Run time
Build rustls-cert-gen as a standalone package	27s
Validate external types appearing in public API	1m 29s
build (macOS-latest, stable)	3m 30s
build-windows	13m 33s
build (ubuntu-latest, stable)	5m 34s
build (ubuntu-latest, beta)	5m 43s
Measure coverage	5m 19s
Format & clippy	4m 56s
build (ubuntu-latest, nightly)	5m 34s
build (ubuntu-latest, stable 7 months ago)	5m 45s
Documentation (stable)	1m 4s
Documentation (nightly)	1m 3s
Check semver compatibility	1m 3s
	55m 0s

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