error[E0405]: cannot find trait `T` in this scope --> $DIR/issue-21221-2.rs:18:6 | LL | impl T for Foo { } | ^ not found in this scope | help: consider importing one of these items | LL | use baz::T; | LL | use foo::bar::T; | error: aborting due to previous error For more information about this error, try `rustc --explain E0405`.