rustc-ap-rustc_cratesio_shim 447.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit 8f06188991e8e7c764f0775a35432d39e2596c9a The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish