MSRV 1.59: Remove libc requirement for x86_64-*-linux-none#461

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briansmith wants to merge 3 commits intorust-random:masterfrom briansmith:b/syscall-x86_64

+157-68

Commits on Jun 7, 2024

Move sys_fill_exact from util_libc to util_unix.
briansmith
committed
util_unix: Move dependency on libc's errno to callers.
briansmith
committed
linux_android: Use direct syscall on x86-64 to support x86_64-*-linux-none.
briansmith
committed