rustc-ap-rustc_cratesio_shim 473.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit b7f6b8a56befa0b83b869d27f7887cbcc0f38197 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish