error[E0308]: if and else have incompatible types
  --> $DIR/opaque-type-error.rs:20:9
   |
LL | /     if true {
LL | |         thing_one()
   | |         ----------- expected because of this
LL | |     } else {
LL | |         thing_two()
   | |         ^^^^^^^^^^^ expected opaque type, found a different opaque type
LL | |     }.await
   | |_____- if and else have incompatible types
   |
   = note: expected type `impl std::future::Future` (opaque type at <$DIR/opaque-type-error.rs:8:19>)
              found type `impl std::future::Future` (opaque type at <$DIR/opaque-type-error.rs:12:19>)
   = note: distinct uses of `impl Trait` result in different opaque types
   = help: if both `Future`s have the same `Output` type, consider `.await`ing on both of them

error: aborting due to previous error

For more information about this error, try `rustc --explain E0308`.