Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b792197888b9402489aa15dc42fef665 : SUCCESS in 4m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c64e57d0c29e41d589aee443ab7c9a81 : SUCCESS in 10m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2fa3373704da41e9ab23cbb32409add2 : FAILURE in 6m 23s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ed6f593d4819463b802826e862333263 : FAILURE in 7m 03s