pacman -Syu
:: Synchronizing package databases...
 testing                   12.2K  190.0K/s 00:00:00 [#########################] 100%
error: could not extract /var/lib/pacman/testing//binutils-2.18-4/desc: Can't update time for /var/lib/pacman/testing/binutils-2.18-4/desc: Function not implemented
error: failed to update testing (unexpected system error)
 current                   22.6K   63.4K/s 00:00:00 [#########################] 100%
error: could not extract /var/lib/pacman/current//acl-2.2.45-1/desc: Can't update time for /var/lib/pacman/current/acl-2.2.45-1/desc: Function not implemented
error: failed to update current (unexpected system error)
 extra                    324.5K   72.7K/s 00:00:04 [#########################] 100%
error: could not extract /var/lib/pacman/extra//3ddesktop-0.2.9-2/depends: Can't update time for /var/lib/pacman/extra/3ddesktop-0.2.9-2/depends: Function not implemented
error: failed to update extra (unexpected system error)
 community                320.3K   94.7K/s 00:00:03 [#########################] 100%
error: could not extract /var/lib/pacman/community//855resolution-0.4-5/desc: Can't update time for /var/lib/pacman/community/855resolution-0.4-5/desc: Function not implemented
error: failed to update community (unexpected system error)
error: failed to synchronize any databases