rust/src/test/ui/impl-trait/issue-55872-1.full_tait.stderr

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warning: the feature `type_alias_impl_trait` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/issue-55872-1.rs:4:32
|
LL | #![cfg_attr(full_tait, feature(type_alias_impl_trait))]
| ^^^^^^^^^^^^^^^^^^^^^
|
= note: `#[warn(incomplete_features)]` on by default
= note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
error[E0276]: impl has stricter requirements than trait
--> $DIR/issue-55872-1.rs:18:5
|
LL | fn foo<T>() -> Self::E;
| ----------------------- definition of `foo` from trait
...
LL | fn foo<T: Default>() -> Self::E {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ impl has extra requirement `T: Default`
error[E0277]: the trait bound `S: Copy` is not satisfied in `(S, T)`
--> $DIR/issue-55872-1.rs:14:14
|
LL | type E = impl Copy;
| ^^^^^^^^^ within `(S, T)`, the trait `Copy` is not implemented for `S`
|
= note: required because it appears within the type `(S, T)`
help: consider further restricting this bound
|
LL | impl<S: Default + Copy> Bar for S {
| ^^^^^^
error[E0277]: the trait bound `T: Copy` is not satisfied in `(S, T)`
--> $DIR/issue-55872-1.rs:14:14
|
LL | type E = impl Copy;
| ^^^^^^^^^ within `(S, T)`, the trait `Copy` is not implemented for `T`
|
= note: required because it appears within the type `(S, T)`
help: consider further restricting this bound
|
LL | fn foo<T: Default + Copy>() -> Self::E {
| ^^^^^^
error: type parameter `T` is part of concrete type but not used in parameter list for the `impl Trait` type alias
--> $DIR/issue-55872-1.rs:18:37
|
LL | fn foo<T: Default>() -> Self::E {
| _____________________________________^
LL | |
LL | |
LL | | (S::default(), T::default())
LL | | }
| |_____^
error: aborting due to 4 previous errors; 1 warning emitted
Some errors have detailed explanations: E0276, E0277.
For more information about an error, try `rustc --explain E0276`.