Hello everyone. I'll work on improving diagnostic messages for GCC's Rust front-end in Google Summer of Code. Here is the proposal: https://docs.google.com/document/d/1ZPRKu-PKPdZVOAZyYRq7YfSfA0eo7wyX3IL9KJoULnA/edit?usp=sharing Feel free to leave any comments or suggestions here. Ruihan Li