Comment 3 for bug 1688322

The only two changes between the puppet-pacemaker from a successful job and broken one are:
908138862507 - (2017-05-03 12:31:56 +0200) (HEAD -> master, origin/master, origin/HEAD, fix-ipv6-label-typo) Fix a typo in ipv6 addrlabel <Michele Baldessari>
0c2e23375cd2 - (2017-04-28 08:21:18 +0200) (gerrit/master, review/michele_baldessari/ipv6_addrlabel) Add support for ipv6_addrlabel with IPaddr2 RA <Michele Baldessari>

I'd say it is unlikely that this is the issue.