Build failed. https://zuul.opendev.org/t/openstack/buildset/2c1edbb3f39c47d8878b572b86c36df1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8442fdda09ea400a9a98cf80dfe6acc5 : FAILURE in 7m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/77300b74564d4d1e931ad5a8acbe8070 : SUCCESS in 5m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c2b6d9dc1be447028330880d2283a75b : SUCCESS in 5m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8ad870a7df37487d8c6adebbefd1a0cb : SUCCESS in 8m 56s