list-models fails after model is destroyed

[Curtis Hovey]

As seen at
    http://reports.vapour.ws/releases/issue/57d08664749a561ebb925b1a

All hosted models reclaimed, cleaning up controller machines
02:23:59 INFO juju.provider.common destroy.go:20 destroying model "controller"
02:23:59 INFO juju.provider.common destroy.go:31 destroying instances
02:24:09 INFO juju.provider.common destroy.go:51 destroying storage
02:24:09 INFO cmd supercommand.go:465 command finished
2017-02-23 02:24:09 ERROR Command '('juju', '--show-log', 'list-models', '-c', 'functional-model-migration-joyent-b')' returned non-zero exit status 1

This is only seen in the rackspace and joyent substrates. This might be a timing issue with the providers. The command failed after migrating a model and the old model was destroyed. List models fails without showing an error to give us a clue about the problem.

[Anastasia (anastasia-macmood)]

PR against 2.1 (2.1.1): https://github.com/juju/juju/pull/7033