rustc-ap-rustc_cratesio_shim 393.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit 7e001e5c6c7c090b41416a57d4be412ed3ccd937 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish