warning: unnecessary lifetime parameter `'a`
  --> $DIR/regions-free-region-outlives-static-outlives-free-region.rs:13:9
   |
LL | fn test<'a,'b>(x: &'a i32) -> &'b i32
   |         ^^
   |
   = note: you can use the `'static` lifetime directly, in place of `'a`
note: the lint level is defined here
  --> $DIR/regions-free-region-outlives-static-outlives-free-region.rs:11:9
   |
LL | #![warn(redundant_lifetimes)]
   |         ^^^^^^^^^^^^^^^^^^^

warning: 1 warning emitted