The musl release build now links cleanly through cargo-zigbuild, but rustc's
new linker_messages lint echoed zig's "ignoring deprecated linker optimization
setting '1'" note — zig's linker declining the -O1 GNU-ld flag Rust passes. It
is cosmetic and the binary is correct, so allow that one lint, scoped to the
zig build step only. macOS and Windows keep full linker diagnostics, and a real
link error still fails the build.
No behaviour change to the produced binaries; takes effect on the next tag.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>