#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let a = [1, 2, 3];
    let v_cloned: Vec<_> = a.iter().cloned().collect();
    let v_map: Vec<_> = a.iter().map(|&x| x).collect();
    assert_eq!(v_cloned, [1, 2, 3]);
    assert_eq!(v_map, [1, 2, 3]);
}