musl: Make rustc-dep-of-std imply musl_v1_2 - #5447
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The musl baseline for Rust is 1.2.5 since 1.93.0. Therefore, it is safe to make rustc-dep-of-std imply musl_v1_2, and this lets us start using statx from libc in std.
tgross35
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Aug 30, 2026
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The change here looks fine to me, though a comment in Cargo.toml would be helpeful. However, I'd rather not merge this until there's a rust-lang/rust PR setting this cfg via bootstrap and doing try jobs on our musl targets. That won't be the permanent of course, but I would be better to find anything broken and fix it without needing to ping pong between libc releases and rustc PRs.
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The musl baseline for Rust is 1.2.5 since 1.93.0. Therefore, it is safe to make rustc-dep-of-std imply musl_v1_2, and this lets us start using statx from libc in std.