error: called `cloned().last()` on an `Iterator`. It may be more efficient to call `last().cloned()` instead
  --> $DIR/iter_overeager_cloned.rs:8:29
   |
LL |     let _: Option<String> = vec.iter().cloned().last();
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `vec.iter().last().cloned()`
   |
   = note: `-D clippy::iter-overeager-cloned` implied by `-D warnings`

error: called `cloned().next()` on an `Iterator`. It may be more efficient to call `next().cloned()` instead
  --> $DIR/iter_overeager_cloned.rs:10:29
   |
LL |     let _: Option<String> = vec.iter().chain(vec.iter()).cloned().next();
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `vec.iter().chain(vec.iter()).next().cloned()`

error: called `cloned().count()` on an `Iterator`. It may be more efficient to call `count()` instead
  --> $DIR/iter_overeager_cloned.rs:12:20
   |
LL |     let _: usize = vec.iter().filter(|x| x == &"2").cloned().count();
   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `vec.iter().filter(|x| x == &"2").count()`
   |
   = note: `-D clippy::redundant-clone` implied by `-D warnings`

error: called `cloned().take(...)` on an `Iterator`. It may be more efficient to call `take(...).cloned()` instead
  --> $DIR/iter_overeager_cloned.rs:14:21
   |
LL |     let _: Vec<_> = vec.iter().cloned().take(2).collect();
   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `vec.iter().take(2).cloned()`

error: called `cloned().skip(...)` on an `Iterator`. It may be more efficient to call `skip(...).cloned()` instead
  --> $DIR/iter_overeager_cloned.rs:16:21
   |
LL |     let _: Vec<_> = vec.iter().cloned().skip(2).collect();
   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `vec.iter().skip(2).cloned()`

error: called `cloned().nth(...)` on an `Iterator`. It may be more efficient to call `nth(...).cloned()` instead
  --> $DIR/iter_overeager_cloned.rs:18:13
   |
LL |     let _ = vec.iter().filter(|x| x == &"2").cloned().nth(2);
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `vec.iter().filter(|x| x == &"2").nth(2).cloned()`

error: called `cloned().flatten()` on an `Iterator`. It may be more efficient to call `flatten().cloned()` instead
  --> $DIR/iter_overeager_cloned.rs:20:13
   |
LL |       let _ = [Some(Some("str".to_string())), Some(Some("str".to_string()))]
   |  _____________^
LL | |         .iter()
LL | |         .cloned()
LL | |         .flatten();
   | |__________________^
   |
help: try this
   |
LL ~     let _ = [Some(Some("str".to_string())), Some(Some("str".to_string()))]
LL ~         .iter().flatten().cloned();
   |

error: aborting due to 7 previous errors