error[E0119]: conflicting implementations of trait `Sweet` --> $DIR/coherence-overlap-downstream.rs:11:1 | LL | impl Sweet for T { } | ------------------------- first implementation here LL | impl Sweet for T { } | ^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation error[E0119]: conflicting implementations of trait `Foo<_>` for type `i32` --> $DIR/coherence-overlap-downstream.rs:17:1 | LL | impl Foo for T where T: Bar {} | ----------------------- first implementation here LL | impl Foo for i32 {} | ^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `i32` | = note: downstream crates may implement trait `Bar<_>` for type `i32` error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0119`.