rustc-ap-rustc_cratesio_shim 318.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit d99a320cba42f661aebfa1293b7b2ec3603dda75 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish