Merge pull request #422 from serde-rs/missing

Close the map before checking for missing fields

serde_codegen/src/de.rs

@@ -1096,10 +1096,10 @@ fn deserialize_map(
             }
         }
 
-        $extract_values
-
         try!(visitor.end());
 
+        $extract_values
+
         Ok($result)
     })
 }