# emerge --metadata
skipping sync

>>> Updating Portage cache:    3%Traceback (most recent call last):
  File "/usr/bin/emerge", line 3017, in ?
    cache.util.mirror_cache(source, cm, pdb.auxdb[porttree_root], eclass_cache=ec, verbose_instance=noise_maker)
  File "/usr/lib/portage/pym/cache/util.py", line 38, in mirror_cache
    if long(trg["_mtime_"]) == long(entry["_mtime_"]) and eclass_cache.is_eclass_data_valid(trg["_eclasses_"]):
  File "/usr/lib/portage/pym/cache/mappings.py", line 32, in __getitem__
    return self.orig[key]
  File "/usr/lib/portage/pym/cache/mappings.py", line 77, in __getitem__
    self.d.update(self.pull())
  File "/usr/lib/portage/pym/cache/flat_hash.py", line 29, in callit
    return args[0](*args[1:]+args2)
  File "/usr/lib/portage/pym/cache/flat_hash.py", line 44, in _pull
    d = self._parse_data(myf, cpv)
  File "/usr/lib/portage/pym/cache/flat_hash.py", line 53, in _parse_data
    d = dict(map(lambda x:x.rstrip().split("=", 1), data))
IOError: [Errno 2] No such file or directory