// check-fail #![feature(const_option)] const FOO: i32 = Some(42i32).unwrap(); // This causes an error, but it is attributed to the `panic` *inside* `Option::unwrap` (maybe due // to `track_caller`?). A note points to the originating `const`. const BAR: i32 = Option::::None.unwrap(); //~ NOTE fn main() { println!("{}", FOO); println!("{}", BAR); }