| error[E0119]: conflicting implementations of trait `AnotherTrait` for type `D<OpaqueType>`: |
| --> $DIR/negative-reasoning.rs:18:1 |
| | |
| 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`. |
