rustc-ap-rustc_cratesio_shim 388.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit f0be45738dd3524f9487f3cf358ef014b12c4061 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish