NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST ntp-4.2.4p6 i686-linux /nix/store/x8ysz7s5rmx7dzjx2fzdl5l0q60wicg6-ntp-4.2.4p6.drv /nix/store/kibb4lpr4ba8dx54ckdqcv16hzpfr698-ntp-4.2.4p6