NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST coreutils-6.12 x86_64-linux /nix/store/4biz9njm0dhzpl4awmbbma2mny5yq8rq-coreutils-6.12.drv /nix/store/d8imsim3zs87dskyvmgdd24dn9ak4nbp-coreutils-6.12