error[E0282]: type annotations needed
  --> $DIR/recursive-self-normalization-2.rs:15:5
   |
LL |     needs_bar::<T::Assoc1>();
   |     ^^^^^^^^^^^^^^^^^^^^^^ cannot infer type of the type parameter `S` declared on the function `needs_bar`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0282`.