rustc-ap-rustc_cratesio_shim 203.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit 12ed235adc62e63b16bb4f715b143c37a5efa00d The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish