Port 1.0-staging to main #4217

Job	Run time
Check (stable)	2m 41s
Check --no-default-features (nightly)	53s
Check (nightly)	2m 49s
Check nightly-only targets (nightly)	23s
Check (1.63)	2m 50s
Check selected Tier 3 platforms (nightly)	3m 2s
Rustfmt	3s
Test rustix_use_experimental_asm (powerpc64le-linux)	1m 7s
Test use-libc (ubuntu)	57s
Test use-libc (i686-linux)	43s
Test (ubuntu)	43s
Test (ubuntu-20.04)	45s
Test use-libc (aarch64-linux)	1m 0s
Test (i686-linux)	1m 5s
Test use-libc (powerpc64le-linux)	57s
Test (aarch64-linux)	1m 17s
Test use-libc (riscv64-linux)	59s
Test (powerpc64le-linux)	1m 15s
Test (riscv64-linux)	1m 2s
Test use-libc (arm-linux)	54s
Test (s390x-linux)	1m 15s
Test (arm-linux)	1m 3s
Test (ubuntu-stable)	37s
Test (i686-linux-stable)	59s
Test (aarch64-linux-stable)	59s
Test (riscv64-linux-stable)	1m 5s
Test (s390x-linux-stable)	1m 6s
Test (powerpc64le-linux-stable)	1m 5s
Test (arm-linux-stable)	1m 13s
Test (ubuntu-1.63)	1m 15s
Test (i686-linux-1.63)	1m 15s
Test (aarch64-linux-1.63)	1m 15s
Test (riscv64-linux-1.63)	1m 15s
Test (s390x-linux-1.63)	1m 15s
Test (powerpc64le-linux-1.63)	1m 16s
Test (arm-linux-1.63)	1m 16s
Test (macos-latest)	6m 1s
Test (macos-12)	6m 1s
Test (windows)	1m 0s
Test (windows-2019)	58s
Test (musl)	43s
	58m 17s

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