message: another optimization work-around
diff: // compile-flags: -Zmiri-disable-validation
  fn main() {
  - for _ in 0..10 { // Try many times as this might work by chance.
  - let x = 2u8;
  + for i in 0..10 { // Try many times as this might work by chance.
  + let x = i as u8;
  let x = &x as *const _ as *const [u32; 0];
  // This must fail because alignment is violated. Test specifically for loading ZST.
  let _x = unsafe { *x }; //~ERROR alignment 4 is required
  