rustc-ap-rustc_cratesio_shim 283.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit de9666f123e800d5fc34210f23127aa6a5d6e4ef The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish