rustc-ap-rustc_cratesio_shim 280.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit bcb05a0ab23291851d0a233547f2ad3cbb9cc222 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish