https://bugs.freedesktop.org/show_bug.cgi?id=92301
--- Comment #11 from MC Return mc.return@gmx.net ---
It's using the system 32-bit binaries (apparently left over from the oibaf PPA, about one week old snapshot of Git master), because you haven't built any 32-bit binaries yourself.
I want to ensure that all binaries, including the 32bit ones, are self-built, I am rebuilding with the --enable-32-bit flag added right now, hope this works...