error[E0119]: conflicting implementations of trait `MyTrait` for type `MyType`
  --> $DIR/coherence-blanket-conflicts-with-specific-trait.rs:20:1
   |
LL | impl<T:OtherTrait> MyTrait for T {
   | -------------------------------- first implementation here
...
LL | impl MyTrait for MyType {
   | ^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `MyType`

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0119`.