error[E0277]: the trait bound `for<'a> &'a T: Bar` is not satisfied
  --> $DIR/correct-binder-for-arbitrary-bound-sugg.rs:13:11
   |
LL | fn foo<T: Foo>() {}
   |           ^^^ the trait `for<'a> Bar` is not implemented for `&'a T`
   |
note: required by a bound in `Foo`
  --> $DIR/correct-binder-for-arbitrary-bound-sugg.rs:3:23
   |
LL | trait Foo
   |       --- required by a bound in this trait
LL | where
LL |     for<'a> &'a Self: Bar,
   |                       ^^^ required by this bound in `Foo`
help: consider introducing a `where` clause, but there might be an alternative better way to express this requirement
   |
LL | fn foo<T: Foo>() where for<'a> &'a T: Bar {}
   |                  ++++++++++++++++++++++++

error: aborting due to 1 previous error

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