src/test/ui/consts/dangling_raw_ptr.rs - third_party/rust - Git at Google

 const FOO: *const u32 = { //~ ERROR any use of this value will cause an error
     let x = 42;
     &x
 };

 fn main() {
     let x = FOO;
 }
	const FOO: *const u32 = { //~ ERROR any use of this value will cause an error
	let x = 42;
	&x
	};

	fn main() {
	let x = FOO;
	}