2 #![deny(unused_assignments)]
9 let mut x: isize = 3; //~ ERROR: value assigned to `x` is never read
17 x = 4; //~ ERROR: value assigned to `x` is never read
20 fn f4(mut x: i32) { //~ ERROR: value passed to `x` is never read
27 x = 4; //~ ERROR: value assigned to `x` is never read
34 done = true; // no error