tests/ui/missing-display.rs - external/github.com/dtolnay/thiserror - Git at Google

 use thiserror::Error;

 #[derive(Error, Debug)]
 pub enum MyError {
     First,
     Second,
 }

 fn main() {}
	use thiserror::Error;

	#[derive(Error, Debug)]
	pub enum MyError {
	First,
	Second,
	}

	fn main() {}