rustc-ap-rustc_macros 612.0.0

Automatically published version of the package `rustc_macros` in the rust-lang/rust repository from commit d28a9c38fe14396e86ae274c7847e20ee0f78ca9 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish
rustc-ap-rustc_macros-612.0.0 doesn't have any documentation.