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error[E0726]: implicit elided lifetime not allowed here
--> $DIR/return-not-existing-pair.rs:12:20
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LL | impl<'a, 'b, T, U> MyTrait<T> for U {
| ^^^^^^^^^^ expected lifetime parameters
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help: indicate the anonymous lifetimes
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LL | impl<'a, 'b, T, U> MyTrait<'_, '_, T> for U {
| +++++++
error[E0412]: cannot find type `ConnImpl` in this scope
--> $DIR/return-not-existing-pair.rs:8:48
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LL | async fn foo(&'a self, key: &'b T) -> (&'a ConnImpl, &'b T);
| ^^^^^^^^ not found in this scope
error[E0186]: method `foo` has a `&self` declaration in the trait, but not in the impl
--> $DIR/return-not-existing-pair.rs:14:5
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LL | async fn foo(&'a self, key: &'b T) -> (&'a ConnImpl, &'b T);
| ------------------------------------------------------------ `&self` used in trait
...
LL | async fn foo(_: T) -> (&'a U, &'b T) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `&self` in impl
error[E0308]: mismatched types
--> $DIR/return-not-existing-pair.rs:14:42
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LL | async fn foo(_: T) -> (&'a U, &'b T) {}
| ^^ expected `(&U, &T)`, found `()`
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= note: expected tuple `(&'a U, &'b T)`
found unit type `()`
error: aborting due to 4 previous errors
Some errors have detailed explanations: E0186, E0308, E0412, E0726.
For more information about an error, try `rustc --explain E0186`.
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