error: lifetime bounds may not be parenthesized
  --> $DIR/trait-object-lifetime-parens.rs:9:21
   |
LL | fn f<'a, T: Trait + ('a)>() {}
   |                     ^^^^
   |
help: remove the parentheses
   |
LL - fn f<'a, T: Trait + ('a)>() {}
LL + fn f<'a, T: Trait + 'a>() {}
   |

error: lifetime bounds may not be parenthesized
  --> $DIR/trait-object-lifetime-parens.rs:12:24
   |
LL |     let _: Box<Trait + ('a)>;
   |                        ^^^^
   |
help: remove the parentheses
   |
LL -     let _: Box<Trait + ('a)>;
LL +     let _: Box<Trait + 'a>;
   |

error: lifetimes must be followed by `+` to form a trait object type
  --> $DIR/trait-object-lifetime-parens.rs:16:17
   |
LL |     let _: Box<('a) + Trait>;
   |                 ^^
   |
help: consider adding a trait bound after the potential lifetime bound
   |
LL |     let _: Box<('a + /* Trait */) + Trait>;
   |                    +++++++++++++

error: aborting due to 3 previous errors

