rust/tests/compile-fail-fullmir/stack_free.rs

// Validation changes why we fail
// compile-flags: -Zmir-emit-validate=0 -Zmiri-disable-validation

// error-pattern: tried to deallocate Stack memory but gave Machine(Rust) as the kind

fn main() {
    let x = 42;
    let bad_box = unsafe { std::mem::transmute::<&i32, Box<i32>>(&x) };
    drop(bad_box);
}