Accessing the archive mirroring CVS commits?

[Christian Perrier <bubulle@debian.org>]

This could have been asked to Matt, but better ask this publicly in
case it may interest other people.

I just tried to register and use the special archive set for mirroring
commits in the CVS, but it failed:

$ tla register-archive http://arch.ubuntu.com/apt@arch.ubuntu.com/
arch_archive_connect: attempt to connect to incompatible archive
  archive: http://arch.ubuntu.com/apt@arch.ubuntu.com/

Any idea ?

I successfully registered other archives, for instance Matt's archive:

$ tla archives
apt@packages.debian.org
    http://people.debian.org/~mdz/arch/apt@packages.debian.org/
.../...

--