More git hook complaining

[Edward Z. Yang]

ezyang at javelin:~/Dev/ghc-master$ git push
Counting objects: 24, done.
Delta compression using up to 2 threads.
Compressing objects: 100% (14/14), done.
Writing objects: 100% (14/14), 4.58 KiB, done.
Total 14 (delta 12), reused 0 (delta 0)
Counting objects: 24, done.
Compressing objects: 100% (14/14), done.
Writing objects: 100% (14/14), 4.57 KiB, done.
Total 14 (delta 12), reused 0 (delta 0)
To git at github.com:ghc/ghc.git
   3bb66cc..5b10538  master -> master
Traceback (most recent call last):
  File "./hooks/post-receive-trac", line 198, in <module>
    handle_ref(env=env, *line.split())
  File "./hooks/post-receive-trac", line 159, in handle_ref
    db = env.get_db_cnx()
  File "/usr/lib/python2.5/site-packages/trac/env.py", line 285, in get_db_cnx
    return DatabaseManager(self).get_connection()
  File "/usr/lib/python2.5/site-packages/trac/db/api.py", line 92, in get_connection
    return self._cnx_pool.get_cnx(self.timeout or None)
  File "/usr/lib/python2.5/site-packages/trac/db/pool.py", line 176, in get_cnx
    return _backend.get_cnx(self._connector, self._kwargs, timeout)
  File "/usr/lib/python2.5/site-packages/trac/db/pool.py", line 109, in get_cnx
    cnx = connector.get_connection(**kwargs)
  File "/usr/lib/python2.5/site-packages/trac/db/sqlite_backend.py", line 189, in get_connection
    return SQLiteConnection(path, log, params)
  File "/usr/lib/python2.5/site-packages/trac/db/sqlite_backend.py", line 244, in __init__
    % (getuser(), path))
trac.core.TracError: The user ezyang requires read _and_ write permissions to the database file /srv/trac/ghc/db/trac.db and the directory it is located in.
error: hooks/post-receive exited with error code 1
To ssh://darcs.haskell.org/srv/darcs/ghc.git
   3bb66cc..5b10538  HEAD -> master