In a fresh checkout:
$ ( cd development; ln -s Vagrantfile{.1.0,}; vagrant up )
Was failing with:
err: /Stage[main]//Exec[config-lxc]/returns: change from notrun to 0
failed: cp /vagrant/development/lxc-configs/quantal64 /etc/default/lxc
returned 1 instead of one of [0] at
/tmp/vagrant-puppet/manifests/site.pp:19
because the hostname was "quantal64" and the puppet manifest attempts to
install the lxc-config based on the hostname name of the VM.