diff --git a/internal/service/runner/container.go b/internal/service/runner/container.go
index 518d80c..4a9c473 100644
--- a/internal/service/runner/container.go
+++ b/internal/service/runner/container.go
@@ -165,11 +165,11 @@ func (s *service) ContainerRun(arg *RunArgs) (RuntimeStatus, error) {
 	case *cgv1.Metrics:
 		runtime.CpuTime = int(v.CPU.Usage.Total / 1000000) // nanoseconds to milliseconds
 		runtime.Memory = int(v.Memory.Usage.Max / 1024)    // bytes to kilobytes
-		runtime.RealTime = runtime.CpuTime
+		runtime.RealTime = 0                               // not supported
 	case *cgv2.Metrics:
 		runtime.CpuTime = int(v.CPU.UsageUsec / 1000)  // microseconds to milliseconds
 		runtime.Memory = int(v.Memory.MaxUsage / 1024) // bytes to kilobytes
-		runtime.RealTime = runtime.CpuTime
+		runtime.RealTime = 0                           // not supported
 	default:
 		return RuntimeStatus{}, errors.New("cannot convert metric data to cgroups.{v1/v2}.Metrics")
 	}
diff --git a/internal/service/runner/status.go b/internal/service/runner/status.go
index c921b1e..c88e175 100644
--- a/internal/service/runner/status.go
+++ b/internal/service/runner/status.go
@@ -82,9 +82,9 @@ func (t *TaskStatus) ExtractSandboxInfo() *TaskStatus {
 		t.Message = "cannot parse info file"
 	} else {
 		t.Runtime = RuntimeStatus{
-			RealTime: t.info["real_time"].(int),
-			CpuTime:  t.info["cpu_time"].(int),
-			Memory:   t.info["memory"].(int),
+			RealTime: int(t.info["real_time"].(float64)),
+			CpuTime:  int(t.info["cpu_time"].(float64)),
+			Memory:   int(t.info["memory"].(float64)),
 		}
 	}
 
@@ -136,7 +136,7 @@ func (t *TaskStatus) CheckExitCode() *TaskStatus {
 		return t
 	}
 
-	if t.info["status"] != "exited" || t.info["code"] != 0 {
+	if t.info["status"] != "exited" || t.info["code"] != 0.0 {
 		t.Verdict = VerdictRuntimeError
 		t.Message = fmt.Sprintf("status: %v, code: %v", t.info["status"], t.info["code"])
 	}