Yes, I know pcwalton is and was heavily involved in Rust development. That's why I parenthetically stated that he probably already knew these things (catch_pani

Yes, I know pcwalton is and was heavily involved in Rust development. That's why I parenthetically stated that he probably already knew these things (catch_panic is actually newer than the bulk of pcwalton' work on Rust's language and standard library, so there is a small chance he doesn't know about it). It's still worth noting this point though, for the benefit of other readers.