rustc-ap-rustc_cratesio_shim 348.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit 53b622a48a7945e223dbc5cfb30f7cbd38acc7c5 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish