This push  failed to create the image I was intending to.  https://treeherder.mozilla.org/#/jobs?repo=try&revision=069f6b6e0da8
I'm sorry about that, I believe I corrected the issue. While upgrading to docker 1.10 on these hosts, it was noticed that the docker-in-docker image would not start up correctly. I fixed the issue but didn't tell the worker to use the new image version. I updated it and retriggers should work. Please let me know if you notice any other issues.
No worries garndt. It works for me.