fetching app-portage/etc-proposals-1.4.3-r3 fails: >>> Unpacking download to /var/tmp/portage/app-portage/etc-proposals-1.4.3-r3/work unpack download: file format not recognized. Ignoring.
The ebuild should use mirror://sourceforge instead.
Fixed and committed. Give it some time for the change to propogate to the mirrors, re-sync and re-emerge. I'm not sure yet why when I tested the ebuild before I committed it, it failed to indicate the failure. But re-running it today unchanged did...