error[E0080]: evaluation panicked: called `Option::unwrap()` on a `None` value --> $DIR/const-unwrap.rs:6:18 | LL | const BAR: i32 = Option::::None.unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `BAR` failed here error[E0080]: evaluation panicked: absolutely not! --> $DIR/const-unwrap.rs:9:18 | LL | const BAZ: i32 = Option::::None.expect("absolutely not!"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `BAZ` failed here error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0080`.