// revisions: mirunsafeck thirunsafeck // [thirunsafeck]compile-flags: -Z thir-unsafeck union U { a: str, //~^ ERROR the size for values of type //~| ERROR field must implement `Copy` b: u8, } union W { a: u8, b: str, //~^ ERROR the size for values of type //~| ERROR field must implement `Copy` } fn main() {}