rustc-ap-rustc_cratesio_shim 293.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit 6408162ea13446852cb45d9e781e64ba85ec7bb1 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish