error[E0277]: can't compare `&i32` with `Bar<'a, 'b>`
  --> $DIR/self-referential-3.rs:6:31
   |
LL | fn bar<'a, 'b>(i: &'a i32) -> Bar<'a, 'b> {
   |                               ^^^^^^^^^^^ no implementation for `&i32 == Bar<'a, 'b>`
LL |
LL |     i
   |     - return type was inferred to be `&i32` here
   |
   = help: the trait `PartialEq<Bar<'a, 'b>>` is not implemented for `&i32`
help: the trait `PartialEq` is implemented for `i32`
  --> $SRC_DIR/core/src/cmp.rs:LL:COL
  ::: $SRC_DIR/core/src/cmp.rs:LL:COL
   |
   = note: in this macro invocation
   = note: this error originates in the macro `partial_eq_impl` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0277`.
