rustc-ap-rustc_cratesio_shim 499.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit 0dc9e9c10ca6dc78cba8b9f9b15038c977b10a77 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish