<cjwatson@niejwein ~>$ sudo lxc-start -n trusty-lpdev -F
lxc-start: start.c: preserve_ns: 149 Permission denied - failed to open '/proc/5586/ns/mnt'
lxc-start: start.c: lxc_spawn: 993 failed to store namespace references
lxc-start: start.c: __lxc_start: 1192 failed to spawn 'trusty-lpdev'
lxc-start: lxc_start.c: main: 344 The container failed to start.
lxc-start: lxc_start.c: main: 348 Additional information can be obtained by setting the --logfile and --logpriority options.