1 error[E0277]: `!` is not an iterator
2 --> $DIR/issue-51506.rs:13:24
4 LL | default type Out = !;
5 | ^ `!` is not an iterator
7 = help: the trait `Iterator` is not implemented for `!`
8 note: required by a bound in `Trait::Out`
9 --> $DIR/issue-51506.rs:7:15
11 LL | type Out: Iterator<Item = u32>;
12 | ^^^^^^^^^^^^^^^^^^^^ required by this bound in `Trait::Out`
14 error: aborting due to previous error
16 For more information about this error, try `rustc --explain E0277`.