tests/ui/inference/cannot-infer-async.rs

   1 // edition:2018
   2
   3 use std::io::Error;
   4
   5 fn make_unit() -> Result<(), Error> {
   6     Ok(())
   7 }
   8
   9 fn main() {
  10     let fut = async {
  11         make_unit()?;
  12
  13         Ok(())
  14         //~^ ERROR type annotations needed
  15     };
  16 }