rhythmbox failed in tinderbox

[mcassar]

hi,
i am trying to build rhythmbox in my first tinderbox setup and it's 
failing with
an mtree error (so it says).
i have MTP option enabled and the last part of log looks like this 
(mtpdevice folder not deleted?)

Creating bzip'd tar ball in '/tmp/packages/All/rhythmbox-0.12.6_1.tbz'
Deleting rhythmbox-0.12.6_1
pkg_delete: unable to completely remove directory 
'/usr/local/lib/rhythmbox/plugins'
pkg_delete: unable to completely remove directory '/usr/local/lib/rhythmbox'
pkg_delete: couldn't entirely delete package (perhaps the packing list is
incorrectly specified?)
================================================================

=== Checking filesystem state
list of extra files and directories in / (not present before this port 
was installed but present after it was deinstalled)
3820352        4 drwxr-xr-x    3 root             wheel                 
512 Jan  9 21:58 usr/local/lib/rhythmbox
3820353        4 drwxr-xr-x    3 root             wheel                 
512 Jan  9 21:59 usr/local/lib/rhythmbox/plugins
3820263        4 drwxr-xr-x    2 root             wheel                 
512 Jan  9 21:59 usr/local/lib/rhythmbox/plugins/mtpdevice
================================================================