Build failed. https://zuul.opendev.org/t/openstack/buildset/b969dabdbd634b88b7a37687723bb017 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bc23c6e47e834e3f9f1004e915a08fac : SUCCESS in 4m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/31d4485e71b8453eacac6090e2c0eee6 : FAILURE in 2m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/099aecf57cff41879b7a3533b3ad402c : SUCCESS in 3m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/43cd89a4185e41b0b5a755648f494d13 : SUCCESS in 3m 50s