ERROR: Could not delete dir /var/lib/rabbitmq/mnesia/rabbit <at> web-plugins-expand ({cannot_delete,
                                                                                 "/var/lib/rabbitmq/mnesia/rabbit <at> web-plugins-expand/rabbit.script",
                                                                                 eacces})

http://comments.gmane.org/gmane.comp.networking.rabbitmq.general/8556