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error[E0495]: cannot infer an appropriate lifetime for lifetime parameter 'b in generic type due to conflicting requirements
--> $DIR/impl-implied-bounds-compatibility.rs:12:5
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LL | fn listeners<'b>(&'b self) -> &'a MessageListeners<'b> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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note: first, the lifetime cannot outlive the lifetime `'c` as defined here...
--> $DIR/impl-implied-bounds-compatibility.rs:12:5
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LL | fn listeners<'b>(&'b self) -> &'a MessageListeners<'b> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: ...so that the method type is compatible with trait
--> $DIR/impl-implied-bounds-compatibility.rs:12:5
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LL | fn listeners<'b>(&'b self) -> &'a MessageListeners<'b> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: expected `fn(&'c MessageListeners<'_>) -> &'c MessageListeners<'c>`
found `fn(&MessageListeners<'_>) -> &'a MessageListeners<'_>`
note: but, the lifetime must be valid for the lifetime `'a` as defined here...
--> $DIR/impl-implied-bounds-compatibility.rs:11:6
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LL | impl<'a> MessageListenersInterface for MessageListeners<'a> {
| ^^
note: ...so that the reference type `&'a MessageListeners<'_>` does not outlive the data it points at
--> $DIR/impl-implied-bounds-compatibility.rs:12:5
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LL | fn listeners<'b>(&'b self) -> &'a MessageListeners<'b> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0495`.
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