1 error: this call to `map()` won't have an effect on the call to `count()`
2 --> $DIR/suspicious_map.rs:4:13
4 LL | let _ = (0..3).map(|x| x + 2).count();
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
7 = note: `-D clippy::suspicious-map` implied by `-D warnings`
8 = help: make sure you did not confuse `map` with `filter` or `for_each`
10 error: this call to `map()` won't have an effect on the call to `count()`
11 --> $DIR/suspicious_map.rs:7:13
13 LL | let _ = (0..3).map(f).count();
14 | ^^^^^^^^^^^^^^^^^^^^^
16 = help: make sure you did not confuse `map` with `filter` or `for_each`
18 error: aborting due to 2 previous errors