error[E0371]: the object type `(dyn Baz + 'static)` automatically implements the trait `Foo` --> $DIR/coherence-impl-trait-for-trait.rs:9:1 | LL | impl Foo for dyn Baz { } | ^^^^^^^^^^^^^^^^^^^^ `(dyn Baz + 'static)` automatically implements trait `Foo` error[E0371]: the object type `(dyn Baz + 'static)` automatically implements the trait `Bar` --> $DIR/coherence-impl-trait-for-trait.rs:11:1 | LL | impl Bar for dyn Baz { } | ^^^^^^^^^^^^^^^^^^^^ `(dyn Baz + 'static)` automatically implements trait `Bar` error[E0371]: the object type `(dyn Baz + 'static)` automatically implements the trait `Baz` --> $DIR/coherence-impl-trait-for-trait.rs:13:1 | LL | impl Baz for dyn Baz { } | ^^^^^^^^^^^^^^^^^^^^ `(dyn Baz + 'static)` automatically implements trait `Baz` error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0371`.