Build failed. https://zuul.opendev.org/t/openstack/buildset/9cdf063607e54a628d1b00f3e9f159f7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2b4d6824ed8d4d83b820db1525dde717 : SUCCESS in 3m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/86d401a983e84576889321974100b67a : FAILURE in 3m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1e5b69aada394944be41dbfbe84fbb73 : SUCCESS in 3m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/eb1a6d11b8a940f3876ca628b34203df : SUCCESS in 5m 00s