error: unreachable pattern --> $DIR/unreachable-loop-patterns.rs:17:9 | LL | for _ in unimplemented!() as Void {} | ^ matches no values because `Void` is uninhabited | = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types note: the lint level is defined here --> $DIR/unreachable-loop-patterns.rs:4:9 | LL | #![deny(unreachable_patterns)] | ^^^^^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error