NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST mc-4.6.1 x86_64-linux /nix/store/960s4ax9lnzw4y3snab9968ca55n9vbl-mc-4.6.1.drv /nix/store/gd9r7jjaximn7ji12ccjdl3bwy31l5z3-mc-4.6.1