[Openstack-stable-maint] Stable check of openstack/ceilometer for ref refs/heads/stable/ussuri failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/817a4fd691324f9f8f2d9b47e30ac2... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/50a1f8be41b44de9b391def8701fd027 : SUCCESS in 8m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f703c0b3a6964021b4aa434b1d5a6113 : SUCCESS in 7m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/22b784b3499b4d389b5662156168be56 : TIMED_OUT in 40m 47s