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error[E0119]: conflicting implementations of trait `AnotherTrait` for type `D<OpaqueType>`
--> $DIR/negative-reasoning.rs:19:1
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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: cannot implement trait on type alias impl trait
--> $DIR/negative-reasoning.rs:19:25
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LL | impl AnotherTrait for D<OpaqueType> {
| ^^^^^^^^^^
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note: type alias impl trait defined here
--> $DIR/negative-reasoning.rs:7:19
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LL | type OpaqueType = impl OpaqueTrait;
| ^^^^^^^^^^^^^^^^
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0119`.
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