error[E0369]: binary operation `==` cannot be applied to type `&[T]`
  --> $DIR/missing-trait-bound-for-op.rs:4:15
   |
LL |     let _ = s == t;
   |             - ^^ - &[T]
   |             |
   |             &[T]
   |
help: consider restricting type parameter `T`
   |
LL | pub fn foo<T: std::cmp::PartialEq>(s: &[T], t: &[T]) {
   |             +++++++++++++++++++++

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0369`.