error[E0119]: conflicting implementations of trait `Overlap` for type `u32` --> $DIR/specialization-default-items-drop-coherence.rs:29:1 | LL | impl Overlap for u32 { | -------------------- first implementation here ... LL | impl Overlap for ::Id { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `u32` error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0119`.