      // lifetime used is &#39;b because that&#39;s good enough.
        let y: &amp;&#39;b i32 = &amp;&#39;b x;
        &#39;c: {
            // ditto on &#39;c
            let z: &amp;&#39;c &amp;&#39;b i32 = &amp;&#39;c y;
        }
    }
}
}</span><pre class='rust rust-example-rendered'>
<span class='comment'>// NOTE: `&#39;a: {` and `&amp;&#39;b x` is not valid syntax!</span>
<span class='lifetime'>&#39;a</span>: {
    <span class='kw'>let</span> <span class='ident'>x</span>: <span class='ident'>i32</s