1error[E0277]: `()` is not an iterator
2  --> $DIR/conservative_impl_trait.rs:3:33
3   |
4LL | fn will_ice(something: &u32) -> impl Iterator<Item = &u32> {
5   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ `()` is not an iterator
6   |
7   = help: the trait `Iterator` is not implemented for `()`
8
9error: aborting due to previous error
10
11For more information about this error, try `rustc --explain E0277`.
12