Traceback (most recent call last):
  File "/usr/bin/emerge", line 3961, in ?
    emerge_main()
  File "/usr/bin/emerge", line 3680, in emerge_main
    settings, trees, mtimedb = load_emerge_config()
  File "/usr/bin/emerge", line 3591, in load_emerge_config
    trees = portage.create_trees(trees=trees, **kwargs)
  File "/usr/lib/portage/pym/portage.py", line 6595, in create_trees
    config_incrementals=portage_const.INCREMENTALS)
  File "/usr/lib/portage/pym/portage.py", line 1047, in __init__
    pusedict = grabdict_package(
  File "/usr/lib/portage/pym/portage_util.py", line 169, in grabdict_package
    for x in pkgs:
RuntimeError: dictionary changed size during iteration