// Make sure we catch this even without validation //@compile-flags: -Zmiri-disable-validation // Make sure that we cannot load from memory a `&` that got already invalidated. fn main() { let x = &mut 42; let xraw = x as *mut _; let xref = unsafe { &*xraw }; let xref_in_mem = Box::new(xref); unsafe { *xraw = 42 }; // unfreeze let _val = *xref_in_mem; //~ ERROR: /retag .* tag does not exist in the borrow stack/ }