// The type of `y` ends up getting inferred to the type of the block. fn broken() { let mut x = 3; let mut _y = vec![&mut x]; while x < 10 { //~ ERROR cannot use `x` because it was mutably borrowed let mut z = x; //~ ERROR cannot use `x` because it was mutably borrowed _y.push(&mut z); //~^ ERROR `z` does not live long enough x += 1; //~ ERROR cannot use `x` because it was mutably borrowed } } fn main() { }