1 error[E0751]: found both positive and negative implementation of trait `MyTrait` for type `u32`:
2 --> $DIR/negative-specializes-positive.rs:7:1
4 LL | impl<T> MyTrait for T {}
5 | --------------------- positive implementation here
6 LL | impl !MyTrait for u32 {}
7 | ^^^^^^^^^^^^^^^^^^^^^ negative implementation here
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0751`.