1 error[E0599]: no method named `foo` found for type `Bar` in the current scope
2 --> $DIR/issue-21659-show-relevant-trait-impls-3.rs:30:8
7 = help: items from traits can only be used if the trait is implemented and in scope
8 = note: the following trait defines an item `foo`, perhaps you need to implement it:
11 error: aborting due to previous error