rustc-ap-rustc_macros 603.0.0

Automatically published version of the package `rustc_macros` in the rust-lang/rust repository from commit 42ec6831b019114a4b6f6b58bfb5bc2927d70388 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish
rustc-ap-rustc_macros-603.0.0 is not a library.