Termux doesn't require things like 'sudo', 'chroot', 'adduser/addgroup' for
installing or building packages. Furthermore, Termux is single-user environment.
Seems that fakeroot makes 'abuild' unusable. Perhaps this is
fakeroot(tcp)-specific bug ?
Anyway, fakeroot is not needed in Termux as we don't setting
ownership for packages but only permissions (chmod).