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error[E0283]: type annotations needed: cannot satisfy `dyn D<&(), &()>: B<&()>`
--> $DIR/ambiguity-due-to-uniquification-1.rs:15:31
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LL | (&() as &dyn D<&(), &()>).f()
| ^
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= note: cannot satisfy `dyn D<&(), &()>: B<&()>`
= help: the trait `B<C>` is implemented for `()`
note: required by a bound in `D::f`
--> $DIR/ambiguity-due-to-uniquification-1.rs:10:16
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LL | trait D<C, E>: B<C> + B<E> {
| ^^^^ required by this bound in `D::f`
LL | fn f(&self) {}
| - required by a bound in this associated function
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0283`.
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