rustc-ap-rustc_cratesio_shim 334.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit c0bbc3927e28c22edefe6a1353b5ecc95ea9a104 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish