anchor.diff:        elpaBuild {
           pname = "json-mode";
           ename = "json-mode";
  -        version = "0.1";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/json-mode-0.1.el";
  -          sha256 = "025bwpx7nc1qhdyf2yaqjdr6x1qr6q45776yvy427xdh4nbk054l";
  +        version = "0.2";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/json-mode-0.2.el";
  +          sha256 = "16ph6v9snvlmclg9shnyck86dqvlj4lf8205dhqx4l8vmhfy3d14";
           };
           packageRequires = [ emacs ];
           meta = {
  
positive.code:       elpaBuild {
          pname = "vdiff";
          ename = "vdiff";
          version = "0.2.3";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/vdiff-0.2.3.el";
            sha256 = "197wszzhm2kbfvvlg3f0dzfs3lf4536yq5fd67k2rycj421fr9qz";
          };
          packageRequires = [ emacs hydra ];
          meta = {
  
negative.code:       elpaBuild {
          pname = "debbugs";
          ename = "debbugs";
          version = "0.27";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/debbugs-0.27.tar";
            sha256 = "1zn9p9vmfv5ihrp8d06b6abs48q225v42cgwa01s39hld6zg6wbv";
          };
          packageRequires = [ emacs soap-client ];
          meta = {
  