Prepare 1.28.0: step 2 #1822

Job	Run time
build-linux-pr (dev, x86_64-unknown-linux-gnu)	9m 22s
build-windows-pr (dev, x86_64-pc-windows-msvc)	20m 10s
build-linux-pr (dev, armv7-unknown-linux-gnueabihf)	3m 51s
build-windows-pr (dev, aarch64-pc-windows-msvc)	14m 37s
build-linux-pr (dev, aarch64-linux-android)	1m 13s
build-windows-master	0s
build-windows-pr (dev, x86_64-pc-windows-gnu)	7m 38s
build-linux-pr (release, x86_64-unknown-linux-gnu)	5m 27s
build-windows-pr (release, x86_64-pc-windows-msvc)	6m 43s
build-linux-pr (release, armv7-unknown-linux-gnueabihf)	5m 16s
build-windows-pr (release, aarch64-pc-windows-msvc)	8m 27s
build-linux-pr (release, aarch64-linux-android)	2m 22s
build-all-features (ubuntu-latest, x86_64-unknown-linux-gnu)	8m 21s
build-windows-pr (release, x86_64-pc-windows-gnu)	8m 51s
build-all-features (windows-latest, x86_64-pc-windows-msvc)	18m 45s
build-linux-master	0s
build-linux-stable	0s
build-macos-aarch64 (dev, aarch64-apple-darwin)	12m 28s
build-macos-aarch64 (release, aarch64-apple-darwin)	4m 55s
build-macos-x86_64 (dev, x86_64-apple-darwin)	12m 34s
build-windows-stable	0s
build-macos-x86_64 (release, x86_64-apple-darwin)	7m 27s
check	3m 16s
build-freebsd-master	0s
build-freebsd-stable	0s
doc	5s
conclusion	1s
	2h 41m 49s

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