NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST vpnc-0.5.3 x86_64-linux /nix/store/sprllff03kv30qn702r5pxy0r0z6jb4y-vpnc-0.5.3.drv /nix/store/756wdcxxnvv5krbwl9fx2a5cpk9n8bk5-vpnc-0.5.3