NIXPKG1 http://catamaran.labs.cs.uu.nl/dist/nix/nixpkgs-0.8/MANIFEST valgrind-2.4.0 i686-linux /nix/store/rwfhr6jdlicig2p4psw9gq7mwcw7bxn3-valgrind-2.4.0.drv /nix/store/l6d5mzka13fx6gq3kfhbpldrb4jpz46w-valgrind-2.4.0