games-puzzle/cogs unpacking

linuxoid octogenus # emerge -av games-puzzle/cogs

 * IMPORTANT: 8 news items need reading for repository 'gentoo'.
 * Use eselect news to read news items.


These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  N f   ] games-puzzle/cogs-1.0.4::amielke-overlay  0 kB

Total: 1 package (1 new), Size of downloads: 0 kB
Fetch Restriction: 1 package

Would you like to merge these packages? [Yes/No] y

>>> Verifying ebuild manifests

>>> Emerging (1 of 1) games-puzzle/cogs-1.0.4 from amielke-overlay
 * cogs-installer-build4 RMD160 SHA1 SHA256 size ;-) ...                                                                                                                                 [ ok ]
>>> Unpacking source...
>>> Unpacking ./cogs-1.0.4.zip to /var/tmp/portage/games-puzzle/cogs-1.0.4/work
[./cogs-1.0.4.zip]
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
unzip:  cannot find zipfile directory in one of ./cogs-1.0.4.zip or
        ./cogs-1.0.4.zip.zip, and cannot find ./cogs-1.0.4.zip.ZIP, period.
 * ERROR: games-puzzle/cogs-1.0.4 failed (unpack phase):
 *   failure unpacking ./cogs-1.0.4.zip
 *
 * Call stack:
 *          ebuild.sh, line   85:  Called src_unpack
 *        environment, line 2505:  Called unpack './cogs-1.0.4.zip'
 *   phase-helpers.sh, line  306:  Called die
 * The specific snippet of code:
 *                              ( set +x ; while true ; do echo n || break ; done ) | \
 *                              unzip -qo "${srcdir}${x}" || die "$myfail"
 *
 * If you need support, post the output of `emerge --info '=games-puzzle/cogs-1.0.4'`,
 * the complete build log and the output of `emerge -pqv '=games-puzzle/cogs-1.0.4'`.
 * This ebuild is from an overlay named 'amielke-overlay': '/var/lib/layman/amielke-overlay/'
 * The complete build log is located at '/var/tmp/portage/games-puzzle/cogs-1.0.4/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/games-puzzle/cogs-1.0.4/temp/environment'.
 * Working directory: '/var/tmp/portage/games-puzzle/cogs-1.0.4/work'
 * S: '/var/tmp/portage/games-puzzle/cogs-1.0.4/work/data'

>>> Failed to emerge games-puzzle/cogs-1.0.4, Log file:

>>>  '/var/tmp/portage/games-puzzle/cogs-1.0.4/temp/build.log'