lxc-start 1448649277.700 DEBUG    lxc_start - sigchild handler set
      lxc-start 1448649277.700 INFO     lxc_start - 'foo' is initialized
      lxc-start 1448649277.701 DEBUG    lxc_start - Not dropping cap_sys_boot or watching utmp

      lxc-start 1448649277.701 DEBUG    lxc_conf - instanciated veth 'vethei3Ehx/vethcLzLk5', index is '21'
      lxc-start 1448649277.701 INFO     lxc_conf - opened /var/lib/lxc/hublxc/rootfs.hold as fd 7

      lxc-start 1448649277.702 DEBUG    lxc_cgroup - checking '/' (rootfs)
      lxc-start 1448649277.702 DEBUG    lxc_cgroup - checking '/' (aufs)
      lxc-start 1448649277.702 DEBUG    lxc_cgroup - checking '/proc' (proc)
      lxc-start 1448649277.702 DEBUG    lxc_cgroup - checking '/dev' (tmpfs)
      lxc-start 1448649277.702 DEBUG    lxc_cgroup - checking '/dev/pts' (devpts)
      lxc-start 1448649277.702 DEBUG    lxc_cgroup - checking '/sys' (sysfs)
      lxc-start 1448649277.702 DEBUG    lxc_cgroup - checking '/sys/fs/cgroup' (tmpfs)
      lxc-start 1448649277.702 DEBUG    lxc_cgroup - checking '/sys/fs/cgroup/cpuset' (cgroup)
      lxc-start 1448649277.702 INFO     lxc_cgroup - found cgroup mounted at '/sys/fs/cgroup/cpuset'
      lxc-start 1448649277.702 DEBUG    lxc_cgroup - get_init_cgroup: found init cgroup for subsys (null) at /docker/0e75f5955aa60b3eae4f12cf60e7a537868ba3d91671b25fa77122064e396b2c


      lxc-start 1448649277.702 DEBUG    lxc_cgroup - cgroup /sys/fs/cgroup/cpuset has flags 0x0
      lxc-start 1448649277.702 ERROR    lxc_cgroup - no ns_cgroup option specified
      lxc-start 1448649277.702 ERROR    lxc_start - failed to spawn 'foo'
      lxc-start 1448649277.703 DEBUG    lxc_cgroup - get_init_cgroup: found init cgroup for subsys (null) at /docker/0e75f5955aa60b3eae4f12cf60e7a537868ba3d91671b25fa77122064e396b2c


      lxc-start 1448649277.703 DEBUG    lxc_cgroup - destroying /sys/fs/cgroup/cpuset/docker/0e75f5955aa60b3eae4f12cf60e7a537868ba3d91671b25fa77122064e396b2c/lxc/foo

      lxc-start 1448649277.703 WARN     lxc_cgroup - failed to open directory: No such file or directory
      lxc-start 1448649277.703 ERROR    lxc_cgroup - No such file or directory - failed to remove cgroup '/sys/fs/cgroup/cpuset/docker/0e75f5955aa60b3eae4f12cf60e7a537868ba3d91671b25fa77122064e396b2c/lxc/foo'