Alright, so looks like a discrepancy between the version of libstdc++ I compiled with and the versions on your systems:
https://stackoverflow.com/a/35394410/5158636,
https://github.com/FoldingAtHome/fah-issues/issues/1147
Can you both ldd sandbot.so then ls -ali the path to libstdc++.so.6 - for me the symlink points to libstdc++.so.6.0.22 which I guess is pretty recent
@RoboCop if you're on Ubuntu 14 you might need to compile yourself or possibly update libstdc++ to a newer version if possible.
@Nubzior you seem to be on a pretty recent version of Debian so might only be off by a minor version. Do the above anyway and we'll see what's what.