File: negative-reasoning.stderr

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error[E0119]: conflicting implementations of trait `AnotherTrait` for type `D<OpaqueType>`
  --> $DIR/negative-reasoning.rs:19:1
   |
LL | impl<T: std::fmt::Debug> AnotherTrait for T {}
   | ------------------------------------------- first implementation here
...
LL | impl AnotherTrait for D<OpaqueType> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `D<OpaqueType>`
   |
   = note: upstream crates may add a new impl of trait `std::fmt::Debug` for type `OpaqueType` in future versions

error: aborting due to previous error

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