{ nixpkgs }: let pkgs = import nixpkgs { system = "x86_64-linux"; overlays = [ ]; config.checkMeta = true; }; in pkgs.stdenvNoCC.mkDerivation { pname = "a"; version = "0"; meta.description = "Some package"; meta.problems = { removal = { message = "This package has been abandoned upstream and will be removed"; }; removal2 = { kind = "removal"; message = "This package has been abandoned upstream and will be removed2"; }; }; }