error: parenthesized lifetime bounds are not supported --> $DIR/trait-object-lifetime-parens.rs:5:21 | LL | fn f<'a, T: Trait + ('a)>() {} | ^^^^ help: remove the parentheses error: parenthesized lifetime bounds are not supported --> $DIR/trait-object-lifetime-parens.rs:8:24 | LL | let _: Box<Trait + ('a)>; | ^^^^ help: remove the parentheses error: lifetime in trait object type must be followed by `+` --> $DIR/trait-object-lifetime-parens.rs:10:17 | LL | let _: Box<('a) + Trait>; | ^^ error: aborting due to 3 previous errors