Yes, I know pcwalton is and was heavily involved in Rust development. That&#x27;s why I parenthetically stated that he probably already knew these things (catch_panic  is actually newer than the bulk of pcwalton&#x27; work on Rust&#x27;s language and standard library, so there is a small chance he doesn&#x27;t know about it).<p>It&#x27;s still worth noting this point though, for the benefit of other readers.