rustc-ap-rustc_cratesio_shim 299.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit 7e82eda000c8d4abbdaa76b3563cd77f938fc411 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish