error: lifetime parameter `'a` never used
  --> $DIR/unused-lifetime.rs:8:35
   |
LL | async fn async_wrong_without_args<'a>() {}
   |                                  -^^- help: elide the unused lifetime
   |
note: the lint level is defined here
  --> $DIR/unused-lifetime.rs:6:9
   |
LL | #![deny(unused_lifetimes)]
   |         ^^^^^^^^^^^^^^^^

error: lifetime parameter `'a` never used
  --> $DIR/unused-lifetime.rs:10:33
   |
LL | async fn async_wrong_1_lifetime<'a>(_: &i32) {}
   |                                -^^- help: elide the unused lifetime

error: lifetime parameter `'b` never used
  --> $DIR/unused-lifetime.rs:12:38
   |
LL | async fn async_wrong_2_lifetimes<'a, 'b>(_: &'a i32, _: &i32) {}
   |                                    --^^
   |                                    |
   |                                    help: elide the unused lifetime

error: lifetime parameter `'a` never used
  --> $DIR/unused-lifetime.rs:23:23
   |
LL | fn wrong_without_args<'a>() {}
   |                      -^^- help: elide the unused lifetime

error: lifetime parameter `'a` never used
  --> $DIR/unused-lifetime.rs:25:21
   |
LL | fn wrong_1_lifetime<'a>(_: &i32) {}
   |                    -^^- help: elide the unused lifetime

error: lifetime parameter `'b` never used
  --> $DIR/unused-lifetime.rs:27:26
   |
LL | fn wrong_2_lifetimes<'a, 'b>(_: &'a i32, _: &i32) {}
   |                        --^^
   |                        |
   |                        help: elide the unused lifetime

error: aborting due to 6 previous errors