error: usage of `FromIterator::from_iter`
  --> $DIR/from_iter_instead_of_collect.rs:8:5
   |
LL |     Vec::from_iter(iter_expr);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `.collect()` instead of `::from_iter()`: `iter_expr.collect()`
   |
   = note: `-D clippy::from-iter-instead-of-collect` implied by `-D warnings`

error: usage of `FromIterator::from_iter`
  --> $DIR/from_iter_instead_of_collect.rs:10:5
   |
LL |     HashMap::<usize, &i8>::from_iter(vec![5, 5, 5, 5].iter().enumerate());
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `.collect()` instead of `::from_iter()`: `vec![5, 5, 5, 5].iter().enumerate().collect()`

error: aborting due to 2 previous errors