Build failed. https://zuul.opendev.org/t/openstack/buildset/b2dd7d5ddc8e42b1b5d25084469d24b0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/aab383731f324e9dbf8b61cf0d4d01ab : FAILURE in 7m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f2782701fda143f9a2341f5cea861096 : FAILURE in 4m 27s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3e498a5c14594368bd7f2c6d5c5ee3e3 : FAILURE in 4m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7b334e0f55324e129c929a9319780084 : FAILURE in 5m 31s