</span>, <span class='ident'>Mutex</span>};
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>thread</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>sync</span>::<span class='ident'>mpsc</span>;

<span class='kw'>fn</span> <span class='ident'>main</span>() {
    <span class='kw'>let</span> <span class='ident'>data</span> <span class='op'>=</span> <span class='ident'>Arc</span>::<span class='ident'>new</span>(<span class='ident'>Mutex</spa