libvirt-bin broken for lxc in precise

The following works fine on oneiric, but fails in precise with an error like:

  error: Failed to start domain cirros
  error: internal error Child process (ip link add veth0 type veth peer name veth1) status unexpected: exit status 2

=== Setup ===
# install libvirt-bin
sudo apt-get install cgroup-lite --assume-yes
sudo apt-get install libvirt-bin --assume-yes

# add self to libvirtd
groups | grep -q libvirtd || sudo adduser $USER libvirtd

# exit and log back in to get correct groups to take
exit

# get an lxc cirros image
wget http://launchpad.net/cirros/trunk/0.3.0/+download/cirros-0.3.0-i386-lxc.tar.gz
wget "http://smoser.brickies.net/git/?p=tildabin.git;a=blob_plain;f=lxc-libvirt-root;hb=HEAD" -O lxc-libvirt-root
chmod 755 lxc-libvirt-root

d=cirros
mkdir $d
sudo tar -C $d -Sxvzf - < cirros-0.3.0-i386-lxc.tar.gz

echo "IS_NOCLOUD=1" | sudo tee -a $d/var/lib/cloud/config.sh

./lxc-libvirt-root $d

# this should work, you should see cirros boot to an ascii art
# hit 'ctrl-]' to escape the console

virsh -c lxc:// destroy cirros

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: libvirt-bin 0.9.7-2ubuntu7
ProcVersionSignature: User Name 3.2.0-4.10-virtual 3.2.0-rc5
Uname: Linux 3.2.0-4-virtual x86_64
ApportVersion: 1.90-0ubuntu1
Architecture: amd64
Date: Tue Dec 13 19:06:22 2011
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: libvirt
UpgradeStatus: No upgrade log present (probably fresh install)