1 error[E0107]: this trait takes 1 generic argument but 0 generic arguments were supplied
2 --> $DIR/unable-fulfill-trait.rs:4:17
4 LL | field1: dyn Bar<'a, 'b,>,
5 | ^^^ expected 1 generic argument
7 note: trait defined here, with 1 generic parameter: `U`
8 --> $DIR/unable-fulfill-trait.rs:9:11
10 LL | pub trait Bar<'x, 's, U>
12 help: add missing generic argument
14 LL | field1: dyn Bar<'a, 'b, U,>,
17 error[E0227]: ambiguous lifetime bound, explicit lifetime bound required
18 --> $DIR/unable-fulfill-trait.rs:4:13
20 LL | field1: dyn Bar<'a, 'b,>,
23 error: aborting due to 2 previous errors
25 Some errors have detailed explanations: E0107, E0227.
26 For more information about an error, try `rustc --explain E0107`.