src/test/ui/diagnostic-width/whitespace-trimming.rs - toolchain/rustc - Git at Google

 // ignore-tidy-linelength

 fn main() {
                                                                                                                                                                                     let _: () = 42;
 //~^ ERROR mismatched types
 }
	// ignore-tidy-linelength

	fn main() {
	let _: () = 42;
	//~^ ERROR mismatched types
	}