anchor.diff:      sha256 = "1bkvi5l2sshjrg1g9x1a4i337adrv1vhk8p1xrkx5z05nfwazvx0";
     };
   
  +  go-os-rename = buildFromGitHub {
  +    rev = "3ac97f61ef67a6b87b95c1282f6c317ed0e693c2";
  +    owner  = "jbenet";
  +    repo   = "go-os-rename";
  +    sha256 = "0y8rq0y654lcyl7ysijni75j8fpq4hhqnh9qiy2z4hvmnzvb85id";
  +    date = "2015-04-28";
  +  };
  +
     go-plugin = buildFromGitHub {
       rev = "8cf118f7a2f0c7ef1c82f66d4f6ac77c7e27dc12";
       date = "2016-06-07";
  
positive.code:   };
  
    gx-go = buildFromGitHub {
      rev = "v1.2.0";
      owner = "whyrusleeping";
      repo = "gx-go";
      sha256 = "008yfrax1kd9r63rqdi9fcqhy721bjq63d4ypm5d4nn0fbychg4s";
      buildInputs = [
        urfave_cli
        fs
  
negative.code:   };
  
    missinggo = buildFromGitHub {
      rev = "f3a48f14358dc22876048390ba49b963a476a5db";
      owner  = "anacrolix";
      repo   = "missinggo";
      sha256 = "d5c34a92445e5ec95d897f68f9f1cce2a02fdc0d6adc372a98a8bbce6a441c84";
      date = "2016-06-18";
      propagatedBuildInputs = [
        b
        btree
  