rust-clippy/tests/ui/map_clone.stderr

error: you are using an explicit closure for copying elements
  --> $DIR/map_clone.rs:13:22
   |
LL |     let _: Vec<i8> = vec![5_i8; 6].iter().map(|x| *x).collect();
   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `vec![5_i8; 6].iter().copied()`
   |
   = note: `-D clippy::map-clone` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::map_clone)]`

error: you are using an explicit closure for cloning elements
  --> $DIR/map_clone.rs:14:26
   |
LL |     let _: Vec<String> = vec![String::new()].iter().map(|x| x.clone()).collect();
   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `cloned` method: `vec![String::new()].iter().cloned()`

error: you are using an explicit closure for copying elements
  --> $DIR/map_clone.rs:15:23
   |
LL |     let _: Vec<u32> = vec![42, 43].iter().map(|&x| x).collect();
   |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `vec![42, 43].iter().copied()`

error: you are using an explicit closure for copying elements
  --> $DIR/map_clone.rs:17:26
   |
LL |     let _: Option<u64> = Some(&16).map(|b| *b);
   |                          ^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `Some(&16).copied()`

error: you are using an explicit closure for copying elements
  --> $DIR/map_clone.rs:18:25
   |
LL |     let _: Option<u8> = Some(&1).map(|x| x.clone());
   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `Some(&1).copied()`

error: you are needlessly cloning iterator elements
  --> $DIR/map_clone.rs:29:29
   |
LL |     let _ = std::env::args().map(|v| v.clone());
   |                             ^^^^^^^^^^^^^^^^^^^ help: remove the `map` call

error: you are explicitly cloning with `.map()`
  --> $DIR/map_clone.rs:68:13
   |
LL |     let y = x.map(|x| String::clone(x));
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `cloned` method: `x.cloned()`

error: you are explicitly cloning with `.map()`
  --> $DIR/map_clone.rs:70:13
   |
LL |     let y = x.map(Clone::clone);
   |             ^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `cloned` method: `x.cloned()`

error: you are explicitly cloning with `.map()`
  --> $DIR/map_clone.rs:72:13
   |
LL |     let y = x.map(String::clone);
   |             ^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `cloned` method: `x.cloned()`

error: you are explicitly cloning with `.map()`
  --> $DIR/map_clone.rs:78:13
   |
LL |     let y = x.map(|x| String::clone(x));
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `cloned` method: `x.cloned()`

error: you are explicitly cloning with `.map()`
  --> $DIR/map_clone.rs:80:13
   |
LL |     let y = x.map(|x| String::clone(x));
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `cloned` method: `x.cloned()`

error: aborting due to 11 previous errors