&gt; Graphs are unsupported.<p><a href="https:&#x2F;&#x2F;crates.io&#x2F;search?q=graph" rel="nofollow">https:&#x2F;&#x2F;crates.io&#x2F;search?q=graph</a><p>&gt; No support for trying<p><a href="https:&#x2F;&#x2F;doc.rust-lang.org&#x2F;std&#x2F;thread&#x2F;fn.catch_panic.html" rel="nofollow">https:&#x2F;&#x2F;doc.rust-lang.org&#x2F;std&#x2F;thread&#x2F;fn.catch_panic.html</a>