error[E0034]: multiple applicable items in scope --> $DIR/trait-alias-ambiguous.rs:21:7 | LL | t.foo(); | ^^^ multiple `foo` found | note: candidate #1 is defined in an impl of the trait `inner::A` for the type `u8` --> $DIR/trait-alias-ambiguous.rs:8:9 | LL | fn foo(&self) {} | ^^^^^^^^^^^^^ = help: to disambiguate the method call, write `inner::A::foo(t)` instead note: candidate #2 is defined in an impl of the trait `inner::B` for the type `u8` --> $DIR/trait-alias-ambiguous.rs:11:9 | LL | fn foo(&self) {} | ^^^^^^^^^^^^^ = help: to disambiguate the method call, write `inner::B::foo(t)` instead error: aborting due to previous error For more information about this error, try `rustc --explain E0034`.