error[E0201]: duplicate definitions with name `Bar`: --> $DIR/associated-item-duplicate-names-3.rs:14:5 | LL | type Bar; | --------- item in trait ... LL | type Bar = i16; | --------------- previous definition here LL | type Bar = u16; | ^^^^^^^^^^^^^^^ duplicate definition error[E0223]: ambiguous associated type --> $DIR/associated-item-duplicate-names-3.rs:18:12 | LL | let x: Baz::Bar = 5; | ^^^^^^^^ help: use fully-qualified syntax: `::Bar` error: aborting due to 2 previous errors Some errors have detailed explanations: E0201, E0223. For more information about an error, try `rustc --explain E0201`.