Analyzing Rust programs with Charon

What happened

Nadrieril is a long-time Rust contributor, and the maintainer of the rustc pattern-matching infrastructure. During his involvement with Rust, he has noticed a problem with the usability of the language: it is difficult to automatically extract information from a Rust crate for use with other tooling. The Charon project aims to fix that by providing a stable API (the interface one piece of software uses to talk to another) for accessing internal information from the Rust compiler.