rustc-ap-rustc_cratesio_shim 415.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit 33b3b136c50700b1f2df9b00259ae98c79f72abb The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish