rust/tests/compile-fail/stacked_borrows/buggy_as_mut_slice.rs

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#![allow(unused_variables)]
mod safe {
use std::slice::from_raw_parts_mut;
pub fn as_mut_slice<T>(self_: &Vec<T>) -> &mut [T] {
unsafe {
from_raw_parts_mut(self_.as_ptr() as *mut T, self_.len())
}
}
}
fn main() {
let v = vec![0,1,2];
let v1 = safe::as_mut_slice(&v);
let v2 = safe::as_mut_slice(&v);
v1[1] = 5; //~ ERROR reference with non-reactivatable tag
v1[1] = 6;
}