warning: unnecessary lifetime parameter `'a`
  --> $DIR/regions-free-region-outlives-static-outlives-free-region.rs:14:11
   |
LL |     where 'a: 'static
   |           ^^
   |
   = help: 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(unused_lifetimes)]
   |         ^^^^^^^^^^^^^^^^

warning: 1 warning emitted