rustc-ap-rustc_cratesio_shim 404.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit c2ddf5a1dd54ebe18ffb794e096c28a4ed8e1d16 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish