error[E0119]: conflicting implementations of trait `GoMut` for type `MyThingy` --> $DIR/coherence-blanket-conflicts-with-specific-cross-crate.rs:15:1 | LL | impl GoMut for MyThingy { | ^^^^^^^^^^^^^^^^^^^^^^^ | = note: conflicting implementation in crate `go_trait`: - impl<G> GoMut for G where G: Go; error: aborting due to previous error For more information about this error, try `rustc --explain E0119`.