Build server can't find packages for rawhide?

[Richard Shaw]

I tried this build twice, the second several hours later to make sure
it wasn't a sync problem:
http://buildsys.rpmfusion.org/logs/fedora-development-rpmfusion_free/11964-openshot-1.4.2-4.fc18/noarch/job.log

And I got the same/similar error:
Error Downloading Packages:
  polkit-0.104-5.fc17.i686: failure:
Packages/p/polkit-0.104-5.fc17.i686.rpm from fedora-rawhide: [Errno
256] No more mirrors to try.
  libgudev1-181-2.fc17.i686: failure:
Packages/l/libgudev1-181-2.fc17.i686.rpm from fedora-rawhide: [Errno
256] No more mirrors to try.
  ghostscript-9.05-1.fc18.i686: failure:
Packages/g/ghostscript-9.05-1.fc18.i686.rpm from fedora-rawhide:
[Errno 256] No more mirrors to try.

Is this a transient error or something more serious?

Thanks,
Richard