I spoke with the person owning the doc builder, and seems like the it was a problem with how the doc builder would order its work. It was getting stuck trying to build docs for very old packages instead of newest first. So that's getting fixed this week.
What textual warning are you looking for?
2014-10-26 18:07 GMT+01:00 Carter Schonwald <carter.schonwald@gmail.com>:
> 1) once they finally finish updating the hackage deply to current
> hackage-server master, there will be more visibility into the build process
>
> 2) i've pinged the person who is owning making sure doc builders are working
> to ask them to check it out
Still no documentation. :-( All I'm asking for is some kind of
feedback, even a low-tech textual warning on the Hackage starting page
would be fine. As it is, things are very opaque...