Yes, as expected, Iago Toral published the work in Gnome Buildbot at FOSDEM. You can read his announcement in the blog.
Briefly, if you maintain a project in Gnome, and want automatic tests running, then Gnome Buildbot may interest you. And, if you have a project built using jhbuild, then it’s easy to create a Jhbuild based buildbot as the one for Gnome. Just ask in #build-brigade.