Sun Jun 13 19:29:54 MDT 2010: ssh zooko@dev.allmydata.com darcs transfer-mode --repodir /home/darcs/tahoe/trunk/
Sun Jun 13 19:30:23 MDT 2010: Failed to start ssh connection:
    fd:12: hGetLine: end of file
Sun Jun 13 19:30:23 MDT 2010: Severing ssh failed connection to zooko@dev.allmydata.com:/home/darcs/tahoe/trunk/_darcs/patches/0000003542-5e144bbc67cee8ef1f0ba0176cd191e6e5711e74a3b8042c31f5488551fbeeab
Sun Jun 13 19:30:23 MDT 2010: NOTE: the server may be running a version of darcs prior to 2.0.0.

Installing darcs 2 on the server will speed up ssh-based commands.