NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST hal-0.5.10 x86_64-linux /nix/store/g4578ygp8gww977gg5sp7h36gzsmqpms-hal-0.5.10.drv /nix/store/mzs6l5aw84fa3y4ikvxfk1k88jsrq89z-hal-0.5.10