Update exebench.py

exebench.py

@@ -211,6 +211,8 @@ class ExeBench(datasets.GeneratorBasedBuilder):
             if removed_key in row:
                 del row[removed_key]
         for original_key, new_key in _RENAMED_FEATURES.items():
+            if original_key not in row:
+                continue
             row[new_key] = row[original_key]
             del row[original_key]
         return row