tests/ui/parser/shebang/shebang-comment.rs - rust-lang/rust - Git at Google

 #!//bin/bash

 //@ check-pass
 //@ reference: input.shebang
 fn main() {
     println!("a valid shebang (that is also a rust comment)")
 }
	#!//bin/bash

	//@ check-pass
	//@ reference: input.shebang
	fn main() {
	println!("a valid shebang (that is also a rust comment)")
	}