Ugh, wtf is this error about. :/
mightymax root # emerge simutrans --digest
Calculating dependencies ...done!
>>> Generating digest file...
<<< simubase-0_82_15_7exp.zip
<<< simulinux-0_82_15_7exp.tar.gz
>>> Generating manifest file...
<<< simutrans-0.82.15.7.ebuild
<<< files/digest-simutrans-0.82.15.7
>>> Computed message digests.
>>> emerge (1 of 1) games-simulation/simutrans-0.82.15.7 to /
>>> md5 src_uri ;-) simubase-0_82_15_7exp.zip
>>> md5 src_uri ;-) simulinux-0_82_15_7exp.tar.gz
>>> Unpacking source...
>>> Unpacking simubase-0_82_15_7exp.zip to /var/tmp/portage/simutrans-0.82.15.7/work
[/usr/portage/distfiles/simubase-0_82_15_7exp.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 /usr/portage/distfiles/simubase-0_82_15_7exp.zip or
/usr/portage/distfiles/simubase-0_82_15_7exp.zip.zip, and cannot find /usr/portage/distfiles/simubase-0_82_15_7exp.zip.ZIP, period.
!!! ERROR: games-simulation/simutrans-0.82.15.7 failed.
!!! Function unpack, Line 302, Exitcode 9
!!! failure unpacking simubase-0_82_15_7exp.zip