tossmilestone: Fix garbagecollector is blocked

JobBuild
b711a43d
09-23 09:39
41422b61
09-23 09:37
110858
09-23 09:37
pull-kubernetes-conformance-kind-ga-only-parallel 1573245750136016896 1573245165802360832
pull-kubernetes-conformance-kind-ipv6-parallel 1573245750526087168 1573245165554896896
pull-kubernetes-dependencies 1573245741319589888 1573245165596839936
pull-kubernetes-e2e-gce-100-performance 1573245756008042496 1573245165936578560
pull-kubernetes-e2e-gce-ubuntu-containerd 1573245742980534272 1573245165638782976
pull-kubernetes-e2e-kind 1573245747191615488 1573245165718474752
pull-kubernetes-e2e-kind-ipv6 1573245748852559872 1573245165764612096
pull-kubernetes-integration 1574302032418836480 1573245745522282496 1573245165676531712
pull-kubernetes-node-e2e-containerd 1573245754342903808 1573245165886246912
pull-kubernetes-typecheck 1573245756402307072 1573245166389563392
pull-kubernetes-unit 1574302032452390912 1573245752228974592 1573245165840109568
pull-kubernetes-verify 1574302032494333952 1573245759766138880 1573245168075673600
pull-kubernetes-verify-govet-levee 1573245758528819200 1573245167228424192