rustc-ap-rustc_cratesio_shim 216.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit ddcf17e1ed577bad26e92db3c25499620f853a49 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish