error[E0491]: in type `&'a MessageListeners<'_>`, reference has a longer lifetime than the data it references
  --> $DIR/impl-implied-bounds-compatibility.rs:12:5
   |
LL |     fn listeners<'b>(&'b self) -> &'a MessageListeners<'b> {
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
note: the pointer is valid for the lifetime `'a` as defined here
  --> $DIR/impl-implied-bounds-compatibility.rs:11:6
   |
LL | impl<'a> MessageListenersInterface for MessageListeners<'a> {
   |      ^^
note: but the referenced data is only valid for the lifetime `'c` as defined here
  --> $DIR/impl-implied-bounds-compatibility.rs:12:5
   |
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 E0491`.