rally-ci broken due to devstack

[hai shi]

We can not pass the rally-ci gate, the trace-back is:
++ stackrc:source:832 : EBTABLES_RACE_FIX=False
++ stackrc:source:856 : [[ -z /opt/stack/logs ]]
+ ./stack.sh:main:195 : [[ ! trusty =~ (xenial|yakkety|zesty|sid|testing|jessie|f24|f25|rhel7|kvmibm1) ]]
+ ./stack.sh:main:196 : echo 'WARNING: this script has not been tested on trusty'
+ ./stack.sh:main:197 : [[ '' != \y\e\s ]]
+ ./stack.sh:main:198 : die 198 'If you wish to run this script anyway run with FORCE=yes'

And the previous trace-back that we passed is:
++ stackrc:source:821 : RECREATE_KEYSTONE_DB=True
+++ stackrc:source:832 : trueorfalse False EBTABLES_RACE_FIX
+++ functions-common:trueorfalse:141 : local xtrace
++++ functions-common:trueorfalse:142 : set +o
++++ functions-common:trueorfalse:142 : grep xtrace
+++ functions-common:trueorfalse:142 : xtrace='set -o xtrace'
+++ functions-common:trueorfalse:143 : set +o xtrace
++ stackrc:source:832 : EBTABLES_RACE_FIX=False
++ stackrc:source:856 : [[ -z /opt/stack/logs ]]
+ ./stack.sh:main:195 : [[ ! trusty =~ (trusty|xenial|yakkety|7.0|wheezy|sid|testing|jessie|f23|f24|f25|rhel7|kvmibm1) ]]
+ ./stack.sh:main:204 : type -p screen
+ ./stack.sh:main:204 : egrep -q '[0-9]\.stack'
+ ./stack.sh:main:204 : screen -ls
+ ./stack.sh:main:216 : export_proxy_variables

[hai shi (haishi)]

More log info:
The log of broken log:https://r-ci.tk/logs/tTxusRjhcp/rally-dsvm-pg-py27-cli/console.log
The log of passed log:http://r-ci.tk/logs/VxdyZzwQft/rally-dsvm-pg-py27-cli/console.log

[Ian Wienand (iwienand)]

Well, trusty has been disabled on master since it doesn't have a new enough libvirt [1]

There's really not much to be done, you have to use xenial for testing master (or centos, if you'd like :)

[1] https://git.openstack.org/cgit/openstack-dev/devstack/commit/?id=ff10ac318ce4be49d8bceafb7fea92ae1655b497