Total: 317 packages (15 upgrades, 293 new, 8 in new slots, 1 reinstall), Size of downloads: 538,543 kB
Traceback (most recent call last):
  File "/usr/bin/emerge", line 48, in <module>
    retval = emerge_main()
  File "/usr/lib/portage/pym/_emerge/main.py", line 1021, in emerge_main
    gc_locals=locals().clear)
  File "/usr/lib/portage/pym/_emerge/actions.py", line 3837, in run_action
    myopts, myaction, myfiles, spinner)
  File "/usr/lib/portage/pym/_emerge/actions.py", line 316, in action_build
    mydepgraph.display_problems()
  File "/usr/lib/portage/pym/_emerge/depgraph.py", line 6700, in display_problems
    self._show_slot_collision_notice()
  File "/usr/lib/portage/pym/_emerge/depgraph.py", line 781, in _show_slot_collision_notice
    self._dynamic_config._slot_conflict_handler = slot_conflict_handler(self)
  File "/usr/lib/portage/pym/_emerge/resolver/slot_collision.py", line 131, in __init__
    self._prepare_conflict_msg_and_check_for_specificity()
  File "/usr/lib/portage/pym/_emerge/resolver/slot_collision.py", line 315, in _prepare_conflict_msg_and_check_for_specificity
    for flag in violated_atom.use.enabled.union(violated_atom.use.disabled):
AttributeError: 'NoneType' object has no attribute 'enabled'