kubernetes: kubelet/config unit test fails in release-1.6 bazel test

https://k8s-gubernator.appspot.com/build/kubernetes-jenkins/logs/periodic-kubernetes-bazel-test-1-6/1501

E0925 18:02:44.909915       9 event.go:259] Could not construct reference to: '&v1.Pod{TypeMeta:v1.TypeMeta{Kind:"", APIVersion:""}, ObjectMeta:v1.ObjectMeta{Name:"foo", GenerateName:"", Namespace:"", SelfLink:"", UID:"foo", ResourceVersion:"", Generation:0, CreationTimestamp:v1.Time{Time:time.Time{sec:0, nsec:0, loc:(*time.Location)(nil)}}, DeletionTimestamp:(*v1.Time)(nil), DeletionGracePeriodSeconds:(*int64)(nil), Labels:map[string]string(nil), Annotations:map[string]string(nil), OwnerReferences:[]v1.OwnerReference(nil), Finalizers:[]string(nil), ClusterName:""}, Spec:v1.PodSpec{Volumes:[]v1.Volume(nil), InitContainers:[]v1.Container(nil), Containers:[]v1.Container{v1.Container{Name:"ctr", Image:"image", Command:[]string(nil), Args:[]string(nil), WorkingDir:"", Ports:[]v1.ContainerPort(nil), EnvFrom:[]v1.EnvFromSource(nil), Env:[]v1.EnvVar(nil), Resources:v1.ResourceRequirements{Limits:v1.ResourceList(nil), Requests:v1.ResourceList(nil)}, VolumeMounts:[]v1.VolumeMount(nil), LivenessProbe:(*v1.Probe)(nil), ReadinessProbe:(*v1.Probe)(nil), Lifecycle:(*v1.Lifecycle)(nil), TerminationMessagePath:"", TerminationMessagePolicy:"File", ImagePullPolicy:"IfNotPresent", SecurityContext:(*v1.SecurityContext)(0xc42048e630), Stdin:false, StdinOnce:false, TTY:false}}, RestartPolicy:"Always", TerminationGracePeriodSeconds:(*int64)(nil), ActiveDeadlineSeconds:(*int64)(nil), DNSPolicy:"ClusterFirst", NodeSelector:map[string]string(nil), ServiceAccountName:"", DeprecatedServiceAccount:"", AutomountServiceAccountToken:(*bool)(nil), NodeName:"", HostNetwork:false, HostPID:false, HostIPC:false, SecurityContext:(*v1.PodSecurityContext)(nil), ImagePullSecrets:[]v1.LocalObjectReference(nil), Hostname:"", Subdomain:"", Affinity:(*v1.Affinity)(nil), SchedulerName:"", Tolerations:[]v1.Toleration(nil)}, Status:v1.PodStatus{Phase:"", Conditions:[]v1.PodCondition(nil), Message:"", Reason:"", HostIP:"", PodIP:"", StartTime:(*v1.Time)(nil), InitContainerStatuses:[]v1.ContainerStatus(nil), ContainerStatuses:[]v1.ContainerStatus(nil), QOSClass:""}}' due to: 'selfLink was empty, can't make reference'. Will not report event: 'Warning' 'FailedValidation' 'Error validating pod foo_(foo) from test, ignoring: metadata.namespace: Required value'
E0925 18:02:44.913620       9 event.go:259] Could not construct reference to: '&v1.Pod{TypeMeta:v1.TypeMeta{Kind:"", APIVersion:""}, ObjectMeta:v1.ObjectMeta{Name:"foo", GenerateName:"", Namespace:"", SelfLink:"", UID:"", ResourceVersion:"", Generation:0, CreationTimestamp:v1.Time{Time:time.Time{sec:0, nsec:0, loc:(*time.Location)(nil)}}, DeletionTimestamp:(*v1.Time)(nil), DeletionGracePeriodSeconds:(*int64)(nil), Labels:map[string]string(nil), Annotations:map[string]string(nil), OwnerReferences:[]v1.OwnerReference(nil), Finalizers:[]string(nil), ClusterName:""}, Spec:v1.PodSpec{Volumes:[]v1.Volume(nil), InitContainers:[]v1.Container(nil), Containers:[]v1.Container(nil), RestartPolicy:"", TerminationGracePeriodSeconds:(*int64)(nil), ActiveDeadlineSeconds:(*int64)(nil), DNSPolicy:"", NodeSelector:map[string]string(nil), ServiceAccountName:"", DeprecatedServiceAccount:"", AutomountServiceAccountToken:(*bool)(nil), NodeName:"", HostNetwork:false, HostPID:false, HostIPC:false, SecurityContext:(*v1.PodSecurityContext)(nil), ImagePullSecrets:[]v1.LocalObjectReference(nil), Hostname:"", Subdomain:"", Affinity:(*v1.Affinity)(nil), SchedulerName:"", Tolerations:[]v1.Toleration(nil)}, Status:v1.PodStatus{Phase:"", Conditions:[]v1.PodCondition(nil), Message:"", Reason:"", HostIP:"", PodIP:"", StartTime:(*v1.Time)(nil), InitContainerStatuses:[]v1.ContainerStatus(nil), ContainerStatuses:[]v1.ContainerStatus(nil), QOSClass:""}}' due to: 'selfLink was empty, can't make reference'. Will not report event: 'Warning' 'FailedValidation' 'Error validating pod foo_() from test, ignoring: [metadata.namespace: Required value, spec.containers: Required value, spec.restartPolicy: Required value, spec.dnsPolicy: Required value]'
E0925 18:02:44.918749       9 file.go:72] unable to read config path "random_non_existent_path": path does not exist, ignoring
E0925 18:02:44.920555       9 file.go:72] unable to read config path "/tmp/dir-test718662150/test_pod_config_0": path does not exist, ignoring
--- FAIL: TestReadPodsFromFileChanged (5.00s)
	file_linux_test.go:388: Simple pod: Expected update, timeout instead

/assign @yujuhong

Could you look at this or reassign someone? Thanks.