Comment 1 for bug 1673139

I tested this with a juju 2 environment locally and it seemed to work okay, so I don't think it's something that's juju 2 specific.

I've been able to reproduce in the same environment, and have added some debugging information to show what it's trying to parse but failing on yaml.safe_load and I see this:

2017-03-16 09:31:19 [ERROR] Unable to parse:
{'last-known-access': 'login', 'user': 'REDACTED', 'password': 'REDACTED'}
relations:
  unknown:
  - - - haproxy:juju-info
      - livepatch:juju-info
  - - - apache-sign:juju-info
      - logstash-forwarder:juju-info
[...]

Will keep investigating.