Build failed. https://zuul.opendev.org/t/openstack/buildset/c35e77e3668b4f8285c3e77a70410ec8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/22e855ffec024395a6964d641a8ab8e0 : SUCCESS in 4m 00s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/09e6bbbfe49f4e5bb07c70de1ce11187 : SUCCESS in 3m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/88570a02edcb43c9aa9da71ac92911c7 : FAILURE in 4m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fe4512ec58c747abb4d366b8b344b3fe : FAILURE in 3m 52s