1 error: cannot implement trait on type alias impl trait
2 --> $DIR/negative-reasoning.rs:19:25
4 LL | impl AnotherTrait for D<OpaqueType> {
7 note: type alias impl trait defined here
8 --> $DIR/negative-reasoning.rs:7:19
10 LL | type OpaqueType = impl OpaqueTrait;
13 error[E0119]: conflicting implementations of trait `AnotherTrait` for type `D<OpaqueType>`
14 --> $DIR/negative-reasoning.rs:19:1
16 LL | impl<T: std::fmt::Debug> AnotherTrait for T {}
17 | ------------------------------------------- first implementation here
19 LL | impl AnotherTrait for D<OpaqueType> {
20 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `D<OpaqueType>`
22 = note: upstream crates may add a new impl of trait `std::fmt::Debug` for type `OpaqueType` in future versions
24 error: aborting due to 2 previous errors
26 For more information about this error, try `rustc --explain E0119`.