error: unnecessary parentheses around assigned value
  --> $DIR/unused-parens-for-stmt-expr-attributes-issue-129833.rs:9:13
   |
LL |     let _ = (#[inline] #[allow(dead_code)] || println!("Hello!"));
   |             ^                                                   ^
   |
note: the lint level is defined here
  --> $DIR/unused-parens-for-stmt-expr-attributes-issue-129833.rs:6:9
   |
LL | #![deny(unused_parens)]
   |         ^^^^^^^^^^^^^
help: remove these parentheses
   |
LL -     let _ = (#[inline] #[allow(dead_code)] || println!("Hello!"));
LL +     let _ = #[inline] #[allow(dead_code)] || println!("Hello!");
   |

error: unnecessary parentheses around block return value
  --> $DIR/unused-parens-for-stmt-expr-attributes-issue-129833.rs:10:5
   |
LL |     (#[inline] #[allow(dead_code)] || println!("Hello!"))
   |     ^                                                   ^
   |
help: remove these parentheses
   |
LL -     (#[inline] #[allow(dead_code)] || println!("Hello!"))
LL +     #[inline] #[allow(dead_code)] || println!("Hello!")
   |

error: aborting due to 2 previous errors