Work around a negative timestamps bug on macOS. (#1305) #4769

Job	Run time
Check --no-default-features (nightly)	57s
Check nightly-only targets (nightly)	21s
Check selected Tier 3 platforms (nightly)	5m 25s
Check (stable)	6m 16s
Check (nightly)	6m 10s
Rustfmt	13s
Check (1.63)	11m 5s
Test rustix_use_experimental_asm (powerpc64le-linux)	2m 40s
Test rustix_use_experimental_asm (s390x-linux)	1m 54s
Test (ubuntu)	45s
Test use-libc (ubuntu)	43s
Test (ubuntu-20.04)	42s
Test use-libc (i686-linux)	3m 9s
Test (i686-linux)	3m 23s
Test use-libc (aarch64-linux)	1m 13s
Test (aarch64-linux)	1m 9s
Test (powerpc64le-linux)	3m 11s
Test use-libc (powerpc64le-linux)	2m 9s
Test use-libc (riscv64-linux)	2m 24s
Test (riscv64-linux)	2m 22s
Test (s390x-linux)	1m 10s
Test use-libc (s390x-linux)	2m 4s
Test (arm-linux)	3m 9s
Test use-libc (arm-linux)	1m 25s
Test (ubuntu-stable)	47s
Test (i686-linux-stable)	3m 23s
Test (aarch64-linux-stable)	1m 26s
Test (riscv64-linux-stable)	1m 33s
Test (s390x-linux-stable)	1m 45s
Test (powerpc64le-linux-stable)	1m 16s
Test (arm-linux-stable)	3m 7s
Test (ubuntu-1.63)	2m 42s
Test (i686-linux-1.63)	5m 4s
Test (aarch64-linux-1.63)	3m 9s
Test (riscv64-linux-1.63)	4m 4s
Test (s390x-linux-1.63)	3m 8s
Test (powerpc64le-linux-1.63)	3m 54s
Test (arm-linux-1.63)	4m 23s
Test (macos-latest)	38s
Test (macos-13)	1m 4s
Test (windows)	42s
Test (windows-2019)	1m 7s
Test (musl)	49s
	1h 48m 0s

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