'unwrap envy' and exceptions

[Dom DiSc]

On Friday, 10 September 2021 at 02:57:37 UTC, jfondren wrote:
>     assert(find_gcd([3, 5, 12, 15]) == 3);

Maybe a little off topic, but since when is gcd(3,5) != 1 ??
You're program seems to have some bugs...