FreeBSD buildbots offline / missing?

I just ran the Clang tests in order to check a change of mine, and
noticed that two tests are failing in HEAD.

Failing Tests (2):
    Clang :: Driver/cross-linux.c
    Clang :: Driver/fuse-ld.c

I went to see how long ago this happened and it seems that all of the
FreeBSD buildbots are offline (lld and sanitizer) or have disappeared
completely (others). I've been on travel for the last little while
and might have missed something -- what's happening?

-Ed

Hi Ed,

It seems they were silenced in May (r237626), removed in July,
September (r241717, r247039) and cleaned up later (r247917).

cheers,
--renato