rustc-ap-rustc_cratesio_shim 510.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit d3e2cec29225a46298ec4ebf082f34ebd7cfeecf The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish