anchor.diff:    };
   
     vultr = buildFromGitHub {
  -    rev = "0.0.0";
  +    rev = "v1.8";
       owner  = "JamesClonk";
       repo   = "vultr";
  -    sha256 = "1l4g35iap09lw9rb1w0l8v5l6xrwpgcmypq88bic37gwldqndlr7";
  +    sha256 = "1p4vb6rbcfr02fml2sj8nwsy34q4n9ylidhr90vjzk99x57pcjf7";
       propagatedBuildInputs = [
         mow-cli
         tokenbucket
  +      ratelimit
       ];
     };
   
  
positive.code:   };
  
    sets = buildFromGitHub {
      rev = "0.0.0";
      owner  = "feyeleanor";
      repo   = "sets";
      sha256 = "00yzxisz9wfl51dgpg2a06gw8asm5f5zd2g3914qpdxi8z8cw1rg";
      date = "2013-02-27";
      propagatedBuildInputs = [
        slices
  
negative.code:   };
  
    yaml-v2 = buildFromGitHub {
      rev = "a83829b6f1293c91addabc89d0571c246397bbf4";
      date = "2016-03-01";
      owner = "go-yaml";
      repo = "yaml";
      sha256 = "0jf2man0a6jz02zcgqaadqa3844jz5kihrb343jq52xp2180zwzz";
      goPackagePath = "gopkg.in/yaml.v2";
    };
  
    yamux = buildFromGitHub {
      date = "2016-04-20";
      rev = "c8a8a076e0858546ae6e2ee189d94e78b9b881ce";
      owner  = "hashicorp";
      repo   = "yamux";
      sha256 = "0r9gg73z84hhd06k6x2yr4gdibals7m676ghpisq72baz8jkzyhi";
    };
  
    xdr = buildFromGitHub {
      rev = "8cb24337527a8f0f70bd43be68676a4390ca1c14";
      date = "2016-01-28";
      owner  = "calmh";
      repo   = "xdr";
      sha256 = "e72f1e0869388c5949d99d03dcb077b1e7edf0137c42eae8cc2b5c8e77dd92f2";
    };
  
    xon = buildFromGitHub {
  