error: unnecessary parentheses around `return` value
  --> $DIR/lint-unnecessary-parens.rs:13:12
   |
LL |     return (1);
   |            ^ ^
   |
note: the lint level is defined here
  --> $DIR/lint-unnecessary-parens.rs:3:9
   |
LL | #![deny(unused_parens)]
   |         ^^^^^^^^^^^^^
help: remove these parentheses
   |
LL -     return (1);
LL +     return 1;
   |

error: unnecessary parentheses around `return` value
  --> $DIR/lint-unnecessary-parens.rs:16:12
   |
LL |     return (X { y });
   |            ^       ^
   |
help: remove these parentheses
   |
LL -     return (X { y });
LL +     return X { y };
   |

error: unnecessary parentheses around type
  --> $DIR/lint-unnecessary-parens.rs:19:46
   |
LL | pub fn unused_parens_around_return_type() -> (u32) {
   |                                              ^   ^
   |
help: remove these parentheses
   |
LL - pub fn unused_parens_around_return_type() -> (u32) {
LL + pub fn unused_parens_around_return_type() -> u32 {
   |

error: unnecessary parentheses around block return value
  --> $DIR/lint-unnecessary-parens.rs:25:9
   |
LL |         (5)
   |         ^ ^
   |
help: remove these parentheses
   |
LL -         (5)
LL +         5
   |

error: unnecessary parentheses around block return value
  --> $DIR/lint-unnecessary-parens.rs:27:5
   |
LL |     (5)
   |     ^ ^
   |
help: remove these parentheses
   |
LL -     (5)
LL +     5
   |

error: unnecessary parentheses around assigned value
  --> $DIR/lint-unnecessary-parens.rs:44:31
   |
LL | pub const CONST_ITEM: usize = (10);
   |                               ^  ^
   |
help: remove these parentheses
   |
LL - pub const CONST_ITEM: usize = (10);
LL + pub const CONST_ITEM: usize = 10;
   |

error: unnecessary parentheses around assigned value
  --> $DIR/lint-unnecessary-parens.rs:45:33
   |
LL | pub static STATIC_ITEM: usize = (10);
   |                                 ^  ^
   |
help: remove these parentheses
   |
LL - pub static STATIC_ITEM: usize = (10);
LL + pub static STATIC_ITEM: usize = 10;
   |

error: unnecessary parentheses around function argument
  --> $DIR/lint-unnecessary-parens.rs:49:9
   |
LL |     bar((true));
   |         ^    ^
   |
help: remove these parentheses
   |
LL -     bar((true));
LL +     bar(true);
   |

error: unnecessary parentheses around `if` condition
  --> $DIR/lint-unnecessary-parens.rs:51:8
   |
LL |     if (true) {}
   |        ^    ^
   |
help: remove these parentheses
   |
LL -     if (true) {}
LL +     if true {}
   |

error: unnecessary parentheses around `while` condition
  --> $DIR/lint-unnecessary-parens.rs:52:11
   |
LL |     while (true) {}
   |           ^    ^
   |
help: remove these parentheses
   |
LL -     while (true) {}
LL +     while true {}
   |

error: unnecessary parentheses around `match` scrutinee expression
  --> $DIR/lint-unnecessary-parens.rs:53:11
   |
LL |     match (true) {
   |           ^    ^
   |
help: remove these parentheses
   |
LL -     match (true) {
LL +     match true {
   |

error: unnecessary parentheses around `let` scrutinee expression
  --> $DIR/lint-unnecessary-parens.rs:56:16
   |
LL |     if let 1 = (1) {}
   |                ^ ^
   |
help: remove these parentheses
   |
LL -     if let 1 = (1) {}
LL +     if let 1 = 1 {}
   |

error: unnecessary parentheses around `let` scrutinee expression
  --> $DIR/lint-unnecessary-parens.rs:57:19
   |
LL |     while let 1 = (2) {}
   |                   ^ ^
   |
help: remove these parentheses
   |
LL -     while let 1 = (2) {}
LL +     while let 1 = 2 {}
   |

error: unnecessary parentheses around method argument
  --> $DIR/lint-unnecessary-parens.rs:73:24
   |
LL |     X { y: false }.foo((true));
   |                        ^    ^
   |
help: remove these parentheses
   |
LL -     X { y: false }.foo((true));
LL +     X { y: false }.foo(true);
   |

error: unnecessary parentheses around assigned value
  --> $DIR/lint-unnecessary-parens.rs:75:18
   |
LL |     let mut _a = (0);
   |                  ^ ^
   |
help: remove these parentheses
   |
LL -     let mut _a = (0);
LL +     let mut _a = 0;
   |

error: unnecessary parentheses around assigned value
  --> $DIR/lint-unnecessary-parens.rs:76:10
   |
LL |     _a = (0);
   |          ^ ^
   |
help: remove these parentheses
   |
LL -     _a = (0);
LL +     _a = 0;
   |

error: unnecessary parentheses around assigned value
  --> $DIR/lint-unnecessary-parens.rs:77:11
   |
LL |     _a += (1);
   |           ^ ^
   |
help: remove these parentheses
   |
LL -     _a += (1);
LL +     _a += 1;
   |

error: aborting due to 17 previous errors