Link appears to be broken, working one is:<p><a href="https:&#x2F;&#x2F;play.rust-lang.org&#x2F;?gist=a18d697454f9261b28ff" rel="nofollow">https:&#x2F;&#x2F;play.rust-lang.org&#x2F;?gist=a18d697454f9261b28ff</a>