anchor.diff:        elpaBuild {
           pname = "dict-tree";
           ename = "dict-tree";
  -        version = "0.14";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/dict-tree-0.14.el";
  -          sha256 = "1k00k3510bgq7rijvrxbx4b7qlq2abq1dyyn51zgm8q0qk68p5jq";
  +        version = "0.16";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/dict-tree-0.16.tar";
  +          sha256 = "1myf26g3jjk2v8yp3k2n8m45vi20452wd7w2bja8csfkk0qx3300";
           };
           packageRequires = [ heap tNFA trie ];
           meta = {
  
positive.code:       elpaBuild {
          pname = "chess";
          ename = "chess";
          version = "2.0.4";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/chess-2.0.4.tar";
            sha256 = "1sq1bjmp513vldfh7hc2bbfc54665abqiz0kqgqq3gijckaxn5js";
          };
          packageRequires = [ cl-lib ];
          meta = {
  
negative.code:       elpaBuild {
          pname = "vcard";
          ename = "vcard";
          version = "0.2.1";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/vcard-0.2.1.tar";
            sha256 = "0nfrh1mz2h7h259kf7sj13z30kmjywfvs83ax5qjkfwxhqm03abf";
          };
          packageRequires = [ emacs ];
          meta = {
  