error: redundant clone
  --> tests/ui/unnecessary_to_owned.rs:155:64
   |
LL |     require_c_str(&CString::from_vec_with_nul(vec![0]).unwrap().to_owned());
   |                                                                ^^^^^^^^^^^ help: remove this
   |
note: this value is dropped without further use
  --> tests/ui/unnecessary_to_owned.rs:155:20
   |
LL |     require_c_str(&CString::from_vec_with_nul(vec![0]).unwrap().to_owned());
   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = note: `-D clippy::redundant-clone` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::redundant_clone)]`

error: redundant clone
  --> tests/ui/unnecessary_to_owned.rs:156:40
   |
LL |     require_os_str(&OsString::from("x").to_os_string());
   |                                        ^^^^^^^^^^^^^^^ help: remove this
   |
note: this value is dropped without further use
  --> tests/ui/unnecessary_to_owned.rs:156:21
   |
LL |     require_os_str(&OsString::from("x").to_os_string());
   |                     ^^^^^^^^^^^^^^^^^^^

error: redundant clone
  --> tests/ui/unnecessary_to_owned.rs:157:48
   |
LL |     require_path(&std::path::PathBuf::from("x").to_path_buf());
   |                                                ^^^^^^^^^^^^^^ help: remove this
   |
note: this value is dropped without further use
  --> tests/ui/unnecessary_to_owned.rs:157:19
   |
LL |     require_path(&std::path::PathBuf::from("x").to_path_buf());
   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: redundant clone
  --> tests/ui/unnecessary_to_owned.rs:158:35
   |
LL |     require_str(&String::from("x").to_string());
   |                                   ^^^^^^^^^^^^ help: remove this
   |
note: this value is dropped without further use
  --> tests/ui/unnecessary_to_owned.rs:158:18
   |
LL |     require_str(&String::from("x").to_string());
   |                  ^^^^^^^^^^^^^^^^^

error: redundant clone
  --> tests/ui/unnecessary_to_owned.rs:159:39
   |
LL |     require_slice(&[String::from("x")].to_owned());
   |                                       ^^^^^^^^^^^ help: remove this
   |
note: this value is dropped without further use
  --> tests/ui/unnecessary_to_owned.rs:159:20
   |
LL |     require_slice(&[String::from("x")].to_owned());
   |                    ^^^^^^^^^^^^^^^^^^^

error: unnecessary use of `into_owned`
  --> tests/ui/unnecessary_to_owned.rs:64:36
   |
LL |     require_c_str(&Cow::from(c_str).into_owned());
   |                                    ^^^^^^^^^^^^^ help: remove this
   |
   = note: `-D clippy::unnecessary-to-owned` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::unnecessary_to_owned)]`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:65:19
   |
LL |     require_c_str(&c_str.to_owned());
   |                   ^^^^^^^^^^^^^^^^^ help: use: `c_str`

error: unnecessary use of `to_os_string`
  --> tests/ui/unnecessary_to_owned.rs:67:20
   |
LL |     require_os_str(&os_str.to_os_string());
   |                    ^^^^^^^^^^^^^^^^^^^^^^ help: use: `os_str`

error: unnecessary use of `into_owned`
  --> tests/ui/unnecessary_to_owned.rs:68:38
   |
LL |     require_os_str(&Cow::from(os_str).into_owned());
   |                                      ^^^^^^^^^^^^^ help: remove this

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:69:20
   |
LL |     require_os_str(&os_str.to_owned());
   |                    ^^^^^^^^^^^^^^^^^^ help: use: `os_str`

error: unnecessary use of `to_path_buf`
  --> tests/ui/unnecessary_to_owned.rs:71:18
   |
LL |     require_path(&path.to_path_buf());
   |                  ^^^^^^^^^^^^^^^^^^^ help: use: `path`

error: unnecessary use of `into_owned`
  --> tests/ui/unnecessary_to_owned.rs:72:34
   |
LL |     require_path(&Cow::from(path).into_owned());
   |                                  ^^^^^^^^^^^^^ help: remove this

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:73:18
   |
LL |     require_path(&path.to_owned());
   |                  ^^^^^^^^^^^^^^^^ help: use: `path`

error: unnecessary use of `to_string`
  --> tests/ui/unnecessary_to_owned.rs:75:17
   |
LL |     require_str(&s.to_string());
   |                 ^^^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `into_owned`
  --> tests/ui/unnecessary_to_owned.rs:76:30
   |
LL |     require_str(&Cow::from(s).into_owned());
   |                              ^^^^^^^^^^^^^ help: remove this

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:77:17
   |
LL |     require_str(&s.to_owned());
   |                 ^^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_string`
  --> tests/ui/unnecessary_to_owned.rs:78:17
   |
LL |     require_str(&x_ref.to_string());
   |                 ^^^^^^^^^^^^^^^^^^ help: use: `x_ref.as_ref()`

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:80:19
   |
LL |     require_slice(&slice.to_vec());
   |                   ^^^^^^^^^^^^^^^ help: use: `slice`

error: unnecessary use of `into_owned`
  --> tests/ui/unnecessary_to_owned.rs:81:36
   |
LL |     require_slice(&Cow::from(slice).into_owned());
   |                                    ^^^^^^^^^^^^^ help: remove this

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:82:19
   |
LL |     require_slice(&array.to_owned());
   |                   ^^^^^^^^^^^^^^^^^ help: use: `array.as_ref()`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:83:19
   |
LL |     require_slice(&array_ref.to_owned());
   |                   ^^^^^^^^^^^^^^^^^^^^^ help: use: `array_ref.as_ref()`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:84:19
   |
LL |     require_slice(&slice.to_owned());
   |                   ^^^^^^^^^^^^^^^^^ help: use: `slice`

error: unnecessary use of `into_owned`
  --> tests/ui/unnecessary_to_owned.rs:87:42
   |
LL |     require_x(&Cow::<X>::Owned(x.clone()).into_owned());
   |                                          ^^^^^^^^^^^^^ help: remove this

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:90:25
   |
LL |     require_deref_c_str(c_str.to_owned());
   |                         ^^^^^^^^^^^^^^^^ help: use: `c_str`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:91:26
   |
LL |     require_deref_os_str(os_str.to_owned());
   |                          ^^^^^^^^^^^^^^^^^ help: use: `os_str`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:92:24
   |
LL |     require_deref_path(path.to_owned());
   |                        ^^^^^^^^^^^^^^^ help: use: `path`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:93:23
   |
LL |     require_deref_str(s.to_owned());
   |                       ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:94:25
   |
LL |     require_deref_slice(slice.to_owned());
   |                         ^^^^^^^^^^^^^^^^ help: use: `slice`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:96:30
   |
LL |     require_impl_deref_c_str(c_str.to_owned());
   |                              ^^^^^^^^^^^^^^^^ help: use: `c_str`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:97:31
   |
LL |     require_impl_deref_os_str(os_str.to_owned());
   |                               ^^^^^^^^^^^^^^^^^ help: use: `os_str`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:98:29
   |
LL |     require_impl_deref_path(path.to_owned());
   |                             ^^^^^^^^^^^^^^^ help: use: `path`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:99:28
   |
LL |     require_impl_deref_str(s.to_owned());
   |                            ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:100:30
   |
LL |     require_impl_deref_slice(slice.to_owned());
   |                              ^^^^^^^^^^^^^^^^ help: use: `slice`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:102:29
   |
LL |     require_deref_str_slice(s.to_owned(), slice.to_owned());
   |                             ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:102:43
   |
LL |     require_deref_str_slice(s.to_owned(), slice.to_owned());
   |                                           ^^^^^^^^^^^^^^^^ help: use: `slice`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:103:29
   |
LL |     require_deref_slice_str(slice.to_owned(), s.to_owned());
   |                             ^^^^^^^^^^^^^^^^ help: use: `slice`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:103:47
   |
LL |     require_deref_slice_str(slice.to_owned(), s.to_owned());
   |                                               ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:105:26
   |
LL |     require_as_ref_c_str(c_str.to_owned());
   |                          ^^^^^^^^^^^^^^^^ help: use: `c_str`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:106:27
   |
LL |     require_as_ref_os_str(os_str.to_owned());
   |                           ^^^^^^^^^^^^^^^^^ help: use: `os_str`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:107:25
   |
LL |     require_as_ref_path(path.to_owned());
   |                         ^^^^^^^^^^^^^^^ help: use: `path`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:108:24
   |
LL |     require_as_ref_str(s.to_owned());
   |                        ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:109:24
   |
LL |     require_as_ref_str(x.to_owned());
   |                        ^^^^^^^^^^^^ help: use: `&x`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:110:26
   |
LL |     require_as_ref_slice(array.to_owned());
   |                          ^^^^^^^^^^^^^^^^ help: use: `array`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:111:26
   |
LL |     require_as_ref_slice(array_ref.to_owned());
   |                          ^^^^^^^^^^^^^^^^^^^^ help: use: `array_ref`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:112:26
   |
LL |     require_as_ref_slice(slice.to_owned());
   |                          ^^^^^^^^^^^^^^^^ help: use: `slice`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:114:31
   |
LL |     require_impl_as_ref_c_str(c_str.to_owned());
   |                               ^^^^^^^^^^^^^^^^ help: use: `c_str`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:115:32
   |
LL |     require_impl_as_ref_os_str(os_str.to_owned());
   |                                ^^^^^^^^^^^^^^^^^ help: use: `os_str`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:116:30
   |
LL |     require_impl_as_ref_path(path.to_owned());
   |                              ^^^^^^^^^^^^^^^ help: use: `path`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:117:29
   |
LL |     require_impl_as_ref_str(s.to_owned());
   |                             ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:118:29
   |
LL |     require_impl_as_ref_str(x.to_owned());
   |                             ^^^^^^^^^^^^ help: use: `&x`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:119:31
   |
LL |     require_impl_as_ref_slice(array.to_owned());
   |                               ^^^^^^^^^^^^^^^^ help: use: `array`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:120:31
   |
LL |     require_impl_as_ref_slice(array_ref.to_owned());
   |                               ^^^^^^^^^^^^^^^^^^^^ help: use: `array_ref`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:121:31
   |
LL |     require_impl_as_ref_slice(slice.to_owned());
   |                               ^^^^^^^^^^^^^^^^ help: use: `slice`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:123:30
   |
LL |     require_as_ref_str_slice(s.to_owned(), array.to_owned());
   |                              ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:123:44
   |
LL |     require_as_ref_str_slice(s.to_owned(), array.to_owned());
   |                                            ^^^^^^^^^^^^^^^^ help: use: `array`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:124:30
   |
LL |     require_as_ref_str_slice(s.to_owned(), array_ref.to_owned());
   |                              ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:124:44
   |
LL |     require_as_ref_str_slice(s.to_owned(), array_ref.to_owned());
   |                                            ^^^^^^^^^^^^^^^^^^^^ help: use: `array_ref`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:125:30
   |
LL |     require_as_ref_str_slice(s.to_owned(), slice.to_owned());
   |                              ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:125:44
   |
LL |     require_as_ref_str_slice(s.to_owned(), slice.to_owned());
   |                                            ^^^^^^^^^^^^^^^^ help: use: `slice`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:126:30
   |
LL |     require_as_ref_slice_str(array.to_owned(), s.to_owned());
   |                              ^^^^^^^^^^^^^^^^ help: use: `array`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:126:48
   |
LL |     require_as_ref_slice_str(array.to_owned(), s.to_owned());
   |                                                ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:127:30
   |
LL |     require_as_ref_slice_str(array_ref.to_owned(), s.to_owned());
   |                              ^^^^^^^^^^^^^^^^^^^^ help: use: `array_ref`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:127:52
   |
LL |     require_as_ref_slice_str(array_ref.to_owned(), s.to_owned());
   |                                                    ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:128:30
   |
LL |     require_as_ref_slice_str(slice.to_owned(), s.to_owned());
   |                              ^^^^^^^^^^^^^^^^ help: use: `slice`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:128:48
   |
LL |     require_as_ref_slice_str(slice.to_owned(), s.to_owned());
   |                                                ^^^^^^^^^^^^ help: use: `s`

error: unnecessary use of `to_string`
  --> tests/ui/unnecessary_to_owned.rs:130:20
   |
LL |     let _ = x.join(&x_ref.to_string());
   |                    ^^^^^^^^^^^^^^^^^^ help: use: `x_ref`

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:132:13
   |
LL |     let _ = slice.to_vec().into_iter();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `slice.iter().copied()`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:133:13
   |
LL |     let _ = slice.to_owned().into_iter();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `slice.iter().copied()`

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:134:13
   |
LL |     let _ = [std::path::PathBuf::new()][..].to_vec().into_iter();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `[std::path::PathBuf::new()][..].iter().cloned()`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:135:13
   |
LL |     let _ = [std::path::PathBuf::new()][..].to_owned().into_iter();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `[std::path::PathBuf::new()][..].iter().cloned()`

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:137:13
   |
LL |     let _ = IntoIterator::into_iter(slice.to_vec());
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `slice.iter().copied()`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:138:13
   |
LL |     let _ = IntoIterator::into_iter(slice.to_owned());
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `slice.iter().copied()`

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:139:13
   |
LL |     let _ = IntoIterator::into_iter([std::path::PathBuf::new()][..].to_vec());
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `[std::path::PathBuf::new()][..].iter().cloned()`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:140:13
   |
LL |     let _ = IntoIterator::into_iter([std::path::PathBuf::new()][..].to_owned());
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `[std::path::PathBuf::new()][..].iter().cloned()`

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:202:14
   |
LL |     for t in file_types.to_vec() {
   |              ^^^^^^^^^^^^^^^^^^^
   |
help: use
   |
LL |     for t in file_types {
   |              ~~~~~~~~~~
help: remove any references to the binding
   |
LL -         let path = match get_file_path(&t) {
LL +         let path = match get_file_path(t) {
   |

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:225:14
   |
LL |     let _ = &["x"][..].to_vec().into_iter();
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `["x"][..].iter().cloned()`

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:230:14
   |
LL |     let _ = &["x"][..].to_vec().into_iter();
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `["x"][..].iter().copied()`

error: unnecessary use of `to_string`
  --> tests/ui/unnecessary_to_owned.rs:278:24
   |
LL |         Box::new(build(y.to_string()))
   |                        ^^^^^^^^^^^^^ help: use: `y`

error: unnecessary use of `to_string`
  --> tests/ui/unnecessary_to_owned.rs:387:12
   |
LL |         id("abc".to_string())
   |            ^^^^^^^^^^^^^^^^^ help: use: `"abc"`

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:530:37
   |
LL |         IntoFuture::into_future(foo([].to_vec(), &0));
   |                                     ^^^^^^^^^^^ help: use: `[]`

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:540:18
   |
LL |         s.remove(&a.to_vec());
   |                  ^^^^^^^^^^^ help: replace it with: `a`

error: unnecessary use of `to_owned`
  --> tests/ui/unnecessary_to_owned.rs:544:14
   |
LL |     s.remove(&"b".to_owned());
   |              ^^^^^^^^^^^^^^^ help: replace it with: `"b"`

error: unnecessary use of `to_string`
  --> tests/ui/unnecessary_to_owned.rs:545:14
   |
LL |     s.remove(&"b".to_string());
   |              ^^^^^^^^^^^^^^^^ help: replace it with: `"b"`

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:550:14
   |
LL |     s.remove(&["b"].to_vec());
   |              ^^^^^^^^^^^^^^^ help: replace it with: `["b"].as_slice()`

error: unnecessary use of `to_vec`
  --> tests/ui/unnecessary_to_owned.rs:551:14
   |
LL |     s.remove(&(&["b"]).to_vec());
   |              ^^^^^^^^^^^^^^^^^^ help: replace it with: `(&["b"]).as_slice()`

error: aborting due to 85 previous errors