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::::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: allocating a new `String` only to create a temporary `&str` from it --> tests/ui/unnecessary_to_owned.rs:162:26 | LL | let _ref_str: &str = &String::from_utf8(slice.to_vec()).expect("not UTF-8"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: convert from `&[u8]` to `&str` directly | LL - let _ref_str: &str = &String::from_utf8(slice.to_vec()).expect("not UTF-8"); LL + let _ref_str: &str = core::str::from_utf8(&slice).expect("not UTF-8"); | error: allocating a new `String` only to create a temporary `&str` from it --> tests/ui/unnecessary_to_owned.rs:163:26 | LL | let _ref_str: &str = &String::from_utf8(b"foo".to_vec()).unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: convert from `&[u8]` to `&str` directly | LL - let _ref_str: &str = &String::from_utf8(b"foo".to_vec()).unwrap(); LL + let _ref_str: &str = core::str::from_utf8(b"foo").unwrap(); | error: allocating a new `String` only to create a temporary `&str` from it --> tests/ui/unnecessary_to_owned.rs:164:26 | LL | let _ref_str: &str = &String::from_utf8(b"foo".as_slice().to_owned()).unwrap(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: convert from `&[u8]` to `&str` directly | LL - let _ref_str: &str = &String::from_utf8(b"foo".as_slice().to_owned()).unwrap(); LL + let _ref_str: &str = core::str::from_utf8(b"foo".as_slice()).unwrap(); | error: unnecessary use of `to_vec` --> tests/ui/unnecessary_to_owned.rs:221:14 | 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:244:14 | LL | let _ = &["x"][..].to_vec().into_iter(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `["x"][..].iter().cloned()` error: unnecessary use of `to_vec` --> tests/ui/unnecessary_to_owned.rs:249:14 | LL | let _ = &["x"][..].to_vec().into_iter(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `["x"][..].iter().copied()` error: unnecessary use of `to_string` --> tests/ui/unnecessary_to_owned.rs:297:24 | LL | Box::new(build(y.to_string())) | ^^^^^^^^^^^^^ help: use: `y` error: unnecessary use of `to_string` --> tests/ui/unnecessary_to_owned.rs:406:12 | LL | id("abc".to_string()) | ^^^^^^^^^^^^^^^^^ help: use: `"abc"` error: unnecessary use of `to_vec` --> tests/ui/unnecessary_to_owned.rs:549:37 | LL | IntoFuture::into_future(foo([].to_vec(), &0)); | ^^^^^^^^^^^ help: use: `[]` error: unnecessary use of `to_vec` --> tests/ui/unnecessary_to_owned.rs:559:18 | LL | s.remove(&a.to_vec()); | ^^^^^^^^^^^ help: replace it with: `a` error: unnecessary use of `to_owned` --> tests/ui/unnecessary_to_owned.rs:563:14 | LL | s.remove(&"b".to_owned()); | ^^^^^^^^^^^^^^^ help: replace it with: `"b"` error: unnecessary use of `to_string` --> tests/ui/unnecessary_to_owned.rs:564:14 | LL | s.remove(&"b".to_string()); | ^^^^^^^^^^^^^^^^ help: replace it with: `"b"` error: unnecessary use of `to_vec` --> tests/ui/unnecessary_to_owned.rs:569:14 | 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:570:14 | LL | s.remove(&(&["b"]).to_vec()); | ^^^^^^^^^^^^^^^^^^ help: replace it with: `(&["b"]).as_slice()` error: aborting due to 88 previous errors