fix minor index error

code_eval.py

@@ -203,9 +203,9 @@ class CodeEval(evaluate.Metric):
                 group = list(group)
                 new_result.append(
                     dict(
-                        task_id=group[0]["task_id"],
-                        passed=all(r["passed"] for r in group),
-                        result=[r["result"] for r in group],
+                        task_id=group[0][0],
+                        passed=all(r[1]["passed"] for r in group),
+                        result=[r[1]["result"] for r in group],
                         completion_id=completion_id,
                     )
                 )