error: `std::iter::empty()` is the more idiomatic way
  --> $DIR/default_instead_of_iter_empty.rs:12:13
   |
LL |     let _ = std::iter::Empty::<usize>::default();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `std::iter::empty::<usize>()`
   |
   = note: `-D clippy::default-instead-of-iter-empty` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::default_instead_of_iter_empty)]`

error: `std::iter::empty()` is the more idiomatic way
  --> $DIR/default_instead_of_iter_empty.rs:13:13
   |
LL |     let _ = std::iter::Empty::<HashMap<usize, usize>>::default();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `std::iter::empty::<HashMap<usize, usize>>()`

error: `std::iter::empty()` is the more idiomatic way
  --> $DIR/default_instead_of_iter_empty.rs:14:41
   |
LL |     let _foo: std::iter::Empty<usize> = std::iter::Empty::default();
   |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `std::iter::empty()`

error: aborting due to 3 previous errors