1 error: avoid using `collect()` when not needed
2 --> $DIR/ice-5872.rs:4:39
4 LL | let _ = vec![1, 2, 3].into_iter().collect::<Vec<_>>().is_empty();
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `next().is_none()`
7 = note: `-D clippy::needless-collect` implied by `-D warnings`
9 error: aborting due to previous error