Has a dependency on slapt-get 0.2.21, which is not in the repo. For most of these failures, I've just ignored the dep and that's worked. In this case, I have a hunch that isn't a good idea, so I'm not trying it.
My guess is that it's in RC 3.4 or so.
A policy for buildbase during release testing would smooth development of the next next Vector version.