ain() {
    let mut v = vec![1, 3, 5, 7, 11];
loop {
    match v.pop() {
        Some(x) =&gt;  println!(&quot;{}&quot;, x),
        None =&gt; break,
    }
}
}</span><pre class='rust rust-example-rendered'>
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>v</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>1</span>, <span class='number'>3</span>, <span class='number'>5</span>, <span class='number'>7</span>, <span cl