Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4ecff61292174b2290ff40e3b9e90082 : SUCCESS in 6m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6c0b8fce8d964462b7c1cfca01e45cc3 : FAILURE in 3m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/03222900ad4c4dc3a3a060816f05bde2 : SUCCESS in 10m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e2b8cf855ff64332a9b43c4f6b8ca4ab : SUCCESS in 10m 06s