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error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates
--> $DIR/refine-resolution-errors.rs:9:6
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LL | impl<T: ?Sized> Mirror for () {
| ^ unconstrained type parameter
error[E0277]: the size for values of type `T` cannot be known at compilation time
--> $DIR/refine-resolution-errors.rs:11:18
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LL | impl<T: ?Sized> Mirror for () {
| - this type parameter needs to be `Sized`
LL |
LL | type Assoc = T;
| ^ doesn't have a size known at compile-time
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note: required by a bound in `Mirror::Assoc`
--> $DIR/refine-resolution-errors.rs:7:5
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LL | type Assoc;
| ^^^^^^^^^^^ required by this bound in `Mirror::Assoc`
help: consider removing the `?Sized` bound to make the type parameter `Sized`
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LL - impl<T: ?Sized> Mirror for () {
LL + impl<T> Mirror for () {
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help: consider relaxing the implicit `Sized` restriction
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LL | type Assoc: ?Sized;
| ++++++++
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0207, E0277.
For more information about an error, try `rustc --explain E0207`.
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