src/test/ui/issues/issue-3680.rs

   1 fn main() {
   2     match None {
   3         Err(_) => ()
   4         //~^ ERROR mismatched types
   5         //~| expected enum `std::option::Option<_>`
   6         //~| found enum `std::result::Result<_, _>`
   7         //~| expected enum `std::option::Option`, found enum `std::result::Result`
   8     }
   9 }