Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/44c7df0cd41f43b7b045398579872b8b : SUCCESS in 8m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/56890037194643ab8bcf87e4f3cbad2e : FAILURE in 7m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/285325f517fc47cfaf1f6d8a8de79db6 : FAILURE in 8m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c4c0cbdfd1d6410e8b4e43339a45570e : FAILURE in 14m 56s