Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dee0e4b05dfc4c9980faa4d5b0aaefb6 : SUCCESS in 4m 25s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/655df6971d7a44b3bac107fb74928cc4 : SUCCESS in 6m 57s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/70ff224fa4aa482d9812cf7df2579a84 : SUCCESS in 7m 29s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/49c0fc5dfc0a45089136deff50b97e97 : FAILURE in 3m 55s