rust/tests/ui/type-alias-impl-trait/underconstrained_lifetime.s...

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error[E0491]: in type `&'b &'a ()`, reference has a longer lifetime than the data it references
--> $DIR/underconstrained_lifetime.rs:15:26
|
LL | type Converter<'a, 'b> = impl ProofForConversion<'a, 'b>;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
note: the pointer is valid for the lifetime `'b` as defined here
--> $DIR/underconstrained_lifetime.rs:15:20
|
LL | type Converter<'a, 'b> = impl ProofForConversion<'a, 'b>;
| ^^
note: but the referenced data is only valid for the lifetime `'a` as defined here
--> $DIR/underconstrained_lifetime.rs:15:16
|
LL | type Converter<'a, 'b> = impl ProofForConversion<'a, 'b>;
| ^^
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0491`.