rustc-ap-rustc_cratesio_shim 139.0.0

Automatically published version of the package `rustc_cratesio_shim` in the rust-lang/rust repository from commit 71e87be381bd6020645d925c579fa7367167d3d8 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish