NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST bsdiff-4.2 i686-linux /nix/store/rmnhplmnihs45mwaz5qd5sbp4jlkr801-bsdiff-4.2.drv /nix/store/2dnl4ash3cfw0bl0ppxwgqkmwc14bas3-bsdiff-4.2