Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fec08944b7de47daa604ec3ab2c7c7a6 : SUCCESS in 3m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/33e7868d59f640e884c68d85647d2ba0 : FAILURE in 2m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cca7c37745944aaa8deb7d1c21527ddc : SUCCESS in 3m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3c2b53c633284e63b396f216f476fd58 : SUCCESS in 3m 08s