anchor.diff:        urfave_cli
         runtime-spec
       ];
  -    meta.useUnstable = true;
  +    meta.autoUpdate = false;
     };
   
     runtime-spec = buildFromGitHub {
  
positive.code: 
    consul_api = buildFromGitHub {
      inherit (consul) owner repo;
      rev = "36dc9201f2e006d4b5db1f0446b17357811297bf";
      date = "2016-08-18";
      sha256 = "30fc2f0516f45c915caf6e33710f4938037d3e7cb9a79da12c0c9f09cb621564";
      propagatedBuildInputs = [
        go-cleanhttp
        serf
  
negative.code:   };
  
    runc = buildFromGitHub {
      rev = "v1.0.0-rc1";
      owner = "opencontainers";
      repo = "runc";
      sha256 = "75b869ab4d184c870de0c203d5466d846c279652ba412f35af7ddeca6835ff5c";
      propagatedBuildInputs = [
        go-units
        logrus
  