rustc-ap-rustc_cratesio_shim 212.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit e94df4acb4c3f42fdc224a7164b63a99240add1e The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish