[Nocturnal]

Now I get

=>> Generating chroot [3/6]
I: Retrieving Release
E: Failed getting release file http://ftp.de.debian.org/debian/dists/lenny/Release
Chroot generation failed

going to http://ftp.de.debian.org/debian/dists/lenny/Release, ends up at http://openinkpot.org/debian/dists/lenny/Release. Which is being returned as a not found error from within the openinkpot trac system.

I'm going to go out on a limb, and say this is all server weirdness, and try again in a few hours.