error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `Vec`
  --> tests/ui/into_iter_on_ref.rs:13:30
   |
LL |     let _ = (&vec![1, 2, 3]).into_iter();
   |                              ^^^^^^^^^ help: call directly: `iter`
   |
   = note: `-D clippy::into-iter-on-ref` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::into_iter_on_ref)]`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `slice`
  --> tests/ui/into_iter_on_ref.rs:14:46
   |
LL |     let _ = vec![1, 2, 3].into_boxed_slice().into_iter();
   |                                              ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `slice`
  --> tests/ui/into_iter_on_ref.rs:15:41
   |
LL |     let _ = std::rc::Rc::from(&[X][..]).into_iter();
   |                                         ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `slice`
  --> tests/ui/into_iter_on_ref.rs:16:44
   |
LL |     let _ = std::sync::Arc::from(&[X][..]).into_iter();
   |                                            ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `array`
  --> tests/ui/into_iter_on_ref.rs:18:32
   |
LL |     let _ = (&&&&&&&[1, 2, 3]).into_iter();
   |                                ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `array`
  --> tests/ui/into_iter_on_ref.rs:19:36
   |
LL |     let _ = (&&&&mut &&&[1, 2, 3]).into_iter();
   |                                    ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `array`
  --> tests/ui/into_iter_on_ref.rs:20:40
   |
LL |     let _ = (&mut &mut &mut [1, 2, 3]).into_iter();
   |                                        ^^^^^^^^^ help: call directly: `iter_mut`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `Option`
  --> tests/ui/into_iter_on_ref.rs:22:24
   |
LL |     let _ = (&Some(4)).into_iter();
   |                        ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `Option`
  --> tests/ui/into_iter_on_ref.rs:23:28
   |
LL |     let _ = (&mut Some(5)).into_iter();
   |                            ^^^^^^^^^ help: call directly: `iter_mut`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `Result`
  --> tests/ui/into_iter_on_ref.rs:24:32
   |
LL |     let _ = (&Ok::<_, i32>(6)).into_iter();
   |                                ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `Result`
  --> tests/ui/into_iter_on_ref.rs:25:37
   |
LL |     let _ = (&mut Err::<i32, _>(7)).into_iter();
   |                                     ^^^^^^^^^ help: call directly: `iter_mut`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `Vec`
  --> tests/ui/into_iter_on_ref.rs:26:34
   |
LL |     let _ = (&Vec::<i32>::new()).into_iter();
   |                                  ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `Vec`
  --> tests/ui/into_iter_on_ref.rs:27:38
   |
LL |     let _ = (&mut Vec::<i32>::new()).into_iter();
   |                                      ^^^^^^^^^ help: call directly: `iter_mut`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `BTreeMap`
  --> tests/ui/into_iter_on_ref.rs:28:44
   |
LL |     let _ = (&BTreeMap::<i32, u64>::new()).into_iter();
   |                                            ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `BTreeMap`
  --> tests/ui/into_iter_on_ref.rs:29:48
   |
LL |     let _ = (&mut BTreeMap::<i32, u64>::new()).into_iter();
   |                                                ^^^^^^^^^ help: call directly: `iter_mut`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `VecDeque`
  --> tests/ui/into_iter_on_ref.rs:30:39
   |
LL |     let _ = (&VecDeque::<i32>::new()).into_iter();
   |                                       ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `VecDeque`
  --> tests/ui/into_iter_on_ref.rs:31:43
   |
LL |     let _ = (&mut VecDeque::<i32>::new()).into_iter();
   |                                           ^^^^^^^^^ help: call directly: `iter_mut`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `LinkedList`
  --> tests/ui/into_iter_on_ref.rs:32:41
   |
LL |     let _ = (&LinkedList::<i32>::new()).into_iter();
   |                                         ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `LinkedList`
  --> tests/ui/into_iter_on_ref.rs:33:45
   |
LL |     let _ = (&mut LinkedList::<i32>::new()).into_iter();
   |                                             ^^^^^^^^^ help: call directly: `iter_mut`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `HashMap`
  --> tests/ui/into_iter_on_ref.rs:34:43
   |
LL |     let _ = (&HashMap::<i32, u64>::new()).into_iter();
   |                                           ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `HashMap`
  --> tests/ui/into_iter_on_ref.rs:35:47
   |
LL |     let _ = (&mut HashMap::<i32, u64>::new()).into_iter();
   |                                               ^^^^^^^^^ help: call directly: `iter_mut`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `BTreeSet`
  --> tests/ui/into_iter_on_ref.rs:37:39
   |
LL |     let _ = (&BTreeSet::<i32>::new()).into_iter();
   |                                       ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `BinaryHeap`
  --> tests/ui/into_iter_on_ref.rs:38:41
   |
LL |     let _ = (&BinaryHeap::<i32>::new()).into_iter();
   |                                         ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `HashSet`
  --> tests/ui/into_iter_on_ref.rs:39:38
   |
LL |     let _ = (&HashSet::<i32>::new()).into_iter();
   |                                      ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `Path`
  --> tests/ui/into_iter_on_ref.rs:40:43
   |
LL |     let _ = std::path::Path::new("12/34").into_iter();
   |                                           ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `PathBuf`
  --> tests/ui/into_iter_on_ref.rs:41:47
   |
LL |     let _ = std::path::PathBuf::from("12/34").into_iter();
   |                                               ^^^^^^^^^ help: call directly: `iter`

error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `array`
  --> tests/ui/into_iter_on_ref.rs:43:26
   |
LL |     let _ = (&[1, 2, 3]).into_iter().next();
   |                          ^^^^^^^^^ help: call directly: `iter`

error: aborting due to 27 previous errors