rust/src/test/ui/traits/trait-impl-of-supertrait-has-wrong-lifetime-parameters.stderr

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2018-08-08 07:28:26 -05:00
error[E0495]: cannot infer an appropriate lifetime for lifetime parameter `'b` due to conflicting requirements
--> $DIR/trait-impl-of-supertrait-has-wrong-lifetime-parameters.rs:34:13
|
LL | impl<'a,'b> T2<'a, 'b> for S<'a, 'b> { //~ ERROR cannot infer an appropriate lifetime
| ^^^^^^^^^^
|
note: first, the lifetime cannot outlive the lifetime 'a as defined on the impl at 34:6...
--> $DIR/trait-impl-of-supertrait-has-wrong-lifetime-parameters.rs:34:6
|
LL | impl<'a,'b> T2<'a, 'b> for S<'a, 'b> { //~ ERROR cannot infer an appropriate lifetime
| ^^
note: ...but the lifetime must also be valid for the lifetime 'b as defined on the impl at 34:9...
--> $DIR/trait-impl-of-supertrait-has-wrong-lifetime-parameters.rs:34:9
|
LL | impl<'a,'b> T2<'a, 'b> for S<'a, 'b> { //~ ERROR cannot infer an appropriate lifetime
| ^^
= note: ...so that the types are compatible:
expected T1<'a>
found T1<'_>
error: aborting due to previous error
For more information about this error, try `rustc --explain E0495`.