rustc-ap-rustc_cratesio_shim 471.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit 26ab32499c0114ae6e01e76374ae06bcd7a973bd The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish