rustc-ap-rustc_cratesio_shim 346.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit 956dba47d33fc8b2bdabcd50e5bfed264b570382 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish