error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:16:9
   |
LL |     let (a) = 0;
   |         ^ ^
   |
note: the lint level is defined here
  --> $DIR/issue-54538-unused-parens-lint.rs:13:9
   |
LL | #![deny(unused_parens)]
   |         ^^^^^^^^^^^^^
help: remove these parentheses
   |
LL -     let (a) = 0;
LL +     let a = 0;
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:17:9
   |
LL |     for (a) in 0..1 {}
   |         ^ ^
   |
help: remove these parentheses
   |
LL -     for (a) in 0..1 {}
LL +     for a in 0..1 {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:18:12
   |
LL |     if let (a) = 0 {}
   |            ^ ^
   |
help: remove these parentheses
   |
LL -     if let (a) = 0 {}
LL +     if let a = 0 {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:19:15
   |
LL |     while let (a) = 0 {}
   |               ^ ^
   |
help: remove these parentheses
   |
LL -     while let (a) = 0 {}
LL +     while let a = 0 {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:20:12
   |
LL |     fn foo((a): u8) {}
   |            ^ ^
   |
help: remove these parentheses
   |
LL -     fn foo((a): u8) {}
LL +     fn foo(a: u8) {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:21:14
   |
LL |     let _ = |(a): u8| 0;
   |              ^ ^
   |
help: remove these parentheses
   |
LL -     let _ = |(a): u8| 0;
LL +     let _ = |a: u8| 0;
   |

error: unnecessary parentheses around `if` condition
  --> $DIR/issue-54538-unused-parens-lint.rs:45:15
   |
LL |     loop { if (break) {} }
   |               ^     ^
   |
help: remove these parentheses
   |
LL -     loop { if (break) {} }
LL +     loop { if break {} }
   |

error: unnecessary parentheses around `if` condition
  --> $DIR/issue-54538-unused-parens-lint.rs:46:15
   |
LL |     loop { if (break ({ println!("hello") })) {} }
   |               ^                             ^
   |
help: remove these parentheses
   |
LL -     loop { if (break ({ println!("hello") })) {} }
LL +     loop { if break ({ println!("hello") }) {} }
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:71:12
   |
LL |     if let (0 | 1) = 0 {}
   |            ^     ^
   |
help: remove these parentheses
   |
LL -     if let (0 | 1) = 0 {}
LL +     if let 0 | 1 = 0 {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:72:13
   |
LL |     if let ((0 | 1),) = (0,) {}
   |             ^     ^
   |
help: remove these parentheses
   |
LL -     if let ((0 | 1),) = (0,) {}
LL +     if let (0 | 1,) = (0,) {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:73:13
   |
LL |     if let [(0 | 1)] = [0] {}
   |             ^     ^
   |
help: remove these parentheses
   |
LL -     if let [(0 | 1)] = [0] {}
LL +     if let [0 | 1] = [0] {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:74:16
   |
LL |     if let 0 | (1 | 2) = 0 {}
   |                ^     ^
   |
help: remove these parentheses
   |
LL -     if let 0 | (1 | 2) = 0 {}
LL +     if let 0 | 1 | 2 = 0 {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:76:15
   |
LL |     if let TS((0 | 1)) = TS(0) {}
   |               ^     ^
   |
help: remove these parentheses
   |
LL -     if let TS((0 | 1)) = TS(0) {}
LL +     if let TS(0 | 1) = TS(0) {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:78:20
   |
LL |     if let NS { f: (0 | 1) } = (NS { f: 0 }) {}
   |                    ^     ^
   |
help: remove these parentheses
   |
LL -     if let NS { f: (0 | 1) } = (NS { f: 0 }) {}
LL +     if let NS { f: 0 | 1 } = (NS { f: 0 }) {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:88:9
   |
LL |         (_) => {}
   |         ^ ^
   |
help: remove these parentheses
   |
LL -         (_) => {}
LL +         _ => {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:89:9
   |
LL |         (y) => {}
   |         ^ ^
   |
help: remove these parentheses
   |
LL -         (y) => {}
LL +         y => {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:90:9
   |
LL |         (ref r) => {}
   |         ^     ^
   |
help: remove these parentheses
   |
LL -         (ref r) => {}
LL +         ref r => {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:91:9
   |
LL |         (e @ 1...2) => {}
   |         ^         ^
   |
help: remove these parentheses
   |
LL -         (e @ 1...2) => {}
LL +         e @ 1...2 => {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:97:9
   |
LL |         (e @ &(1...2)) => {}
   |         ^            ^
   |
help: remove these parentheses
   |
LL -         (e @ &(1...2)) => {}
LL +         e @ &(1...2) => {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:98:10
   |
LL |         &(_) => {}
   |          ^ ^
   |
help: remove these parentheses
   |
LL -         &(_) => {}
LL +         &_ => {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:109:9
   |
LL |         (_) => {}
   |         ^ ^
   |
help: remove these parentheses
   |
LL -         (_) => {}
LL +         _ => {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:110:9
   |
LL |         (y) => {}
   |         ^ ^
   |
help: remove these parentheses
   |
LL -         (y) => {}
LL +         y => {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:111:9
   |
LL |         (ref r) => {}
   |         ^     ^
   |
help: remove these parentheses
   |
LL -         (ref r) => {}
LL +         ref r => {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:112:9
   |
LL |         (e @ 1..=2) => {}
   |         ^         ^
   |
help: remove these parentheses
   |
LL -         (e @ 1..=2) => {}
LL +         e @ 1..=2 => {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:118:9
   |
LL |         (e @ &(1..=2)) => {}
   |         ^            ^
   |
help: remove these parentheses
   |
LL -         (e @ &(1..=2)) => {}
LL +         e @ &(1..=2) => {}
   |

error: unnecessary parentheses around pattern
  --> $DIR/issue-54538-unused-parens-lint.rs:119:10
   |
LL |         &(_) => {}
   |          ^ ^
   |
help: remove these parentheses
   |
LL -         &(_) => {}
LL +         &_ => {}
   |

error: aborting due to 26 previous errors