1 error[E0405]: cannot find trait `OuterTrait` in this scope
2 --> $DIR/issue-21221-3.rs:15:6
4 LL | impl OuterTrait for Foo {}
5 | ^^^^^^^^^^ not found in this scope
7 help: consider importing this trait
9 LL | use issue_21221_3::outer::OuterTrait;
12 error: aborting due to previous error
14 For more information about this error, try `rustc --explain E0405`.