Unify nightly component unavailable messages #3787

Job	Run time
check	1m 1s
build-macos-x86_64 (release, x86_64-apple-darwin)	5m 35s
build-macos-aarch64 (dev, aarch64-apple-darwin)	10m 16s
doc	5s
build-windows-pr (dev, x86_64-pc-windows-msvc)	8m 7s
build-all-features (windows-latest, x86_64-pc-windows-msvc)	10m 58s
build-macos-x86_64 (dev, x86_64-apple-darwin)	8m 30s
build-windows-pr (dev, aarch64-pc-windows-msvc)	11m 51s
build-macos-aarch64 (release, aarch64-apple-darwin)	2m 38s
build-linux-pr (release, x86_64-unknown-linux-gnu)	2m 39s
build-linux-pr (release, aarch64-linux-android)	2m 48s
build-linux-pr (dev, armv7-unknown-linux-gnueabihf)	1m 14s
build-linux-pr (release, armv7-unknown-linux-gnueabihf)	2m 21s
build-windows-pr (release, x86_64-pc-windows-msvc)	5m 13s
build-windows-pr (dev, x86_64-pc-windows-gnu)	2m 29s
build-all-features (ubuntu-latest, x86_64-unknown-linux-gnu)	5m 10s
build-windows-pr (release, x86_64-pc-windows-gnu)	4m 22s
build-linux-pr (dev, aarch64-linux-android)	1m 21s
build-windows-pr (release, aarch64-pc-windows-msvc)	4m 2s
build-linux-pr (dev, x86_64-unknown-linux-gnu)	5m 23s
build-linux-pr (release, aarch64-unknown-linux-gnu)	3m 19s
build-linux-pr (dev, aarch64-unknown-linux-gnu)	7m 15s
build-windows-stable	0s
build-linux-main	0s
build-freebsd-main	0s
build-linux-stable	0s
build-windows-main	0s
build-freebsd-stable	0s
conclusion	3s
	1h 46m 40s

Provide feedback