[wizzwizz4]

Catching panics is best-effort only. In general, Rust panics can't be caught. (Even if a program is compiled with panic=unwind, this can change to abort at run-time.)

[forrestthewoods]

I don’t think that’s correct. Panics can be configured to abort instead of unwind. But if panic != abort then catching should be reliable.

https://doc.rust-lang.org/std/panic/fn.catch_unwind.html