src/test/ui/issues/issue-20831-debruijn.stderr

   1 error[E0495]: cannot infer an appropriate lifetime for lifetime parameter `'a` due to conflicting requirements
   2   --> $DIR/issue-20831-debruijn.rs:28:8
   3    |
   4 LL |     fn subscribe(&mut self, t : Box<dyn Subscriber<Input=<Self as Publisher>::Output> + 'a>) {
   5    |        ^^^^^^^^^
   6    |
   7 note: first, the lifetime cannot outlive the anonymous lifetime defined on the method body at 28:58...
   8   --> $DIR/issue-20831-debruijn.rs:28:58
   9    |
  10 LL |     fn subscribe(&mut self, t : Box<dyn Subscriber<Input=<Self as Publisher>::Output> + 'a>) {
  11    |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  12 note: ...but the lifetime must also be valid for the lifetime `'a` as defined on the impl at 26:6...
  13   --> $DIR/issue-20831-debruijn.rs:26:6
  14    |
  15 LL | impl<'a> Publisher<'a> for MyStruct<'a> {
  16    |      ^^
  17 note: ...so that the types are compatible
  18   --> $DIR/issue-20831-debruijn.rs:28:8
  19    |
  20 LL |     fn subscribe(&mut self, t : Box<dyn Subscriber<Input=<Self as Publisher>::Output> + 'a>) {
  21    |        ^^^^^^^^^
  22    = note: expected `Publisher<'_>`
  23               found `Publisher<'_>`
  24
  25 error: aborting due to previous error
  26
  27 For more information about this error, try `rustc --explain E0495`.