error: task functions must not be generic
 --> tests/ui/nonstatic_struct_generic.rs:6:1
  |
6 | async fn task<'a>(_x: Foo<'a>) {}
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: Arguments for tasks must live forever. Try using the `'static` lifetime.
 --> tests/ui/nonstatic_struct_generic.rs:6:27
  |
6 | async fn task<'a>(_x: Foo<'a>) {}
  |                           ^^