Build failed. https://zuul.opendev.org/t/openstack/buildset/4e401aa764ef4519ba762693750171f6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5e44d1f3477248109a0ec38a8eaf5792 : SUCCESS in 3m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/10e3c5ba632645ada0c711d47d5432df : FAILURE in 4m 09s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8f68673ce3d84c34852bebb12ebd6681 : SUCCESS in 2m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/de526673cee64c14bdcf85554ebf7c58 : SUCCESS in 3m 17s