anchor.diff:    };
   
     net = buildFromGitHub {
  -    rev = "0.0.0";
  -    date = "2016-04-23";
  +    rev = "35ec611a141ee705590b9eb64d673f9e6dfeb1ac";
  +    date = "2016-04-28";
       owner  = "golang";
       repo   = "net";
  -    sha256 = "0z8bm0p45jhvwdq9z7628yn8nl9pcccmsy2awj3g7bva32cgmadj";
  +    sha256 = "1v9adcws9g9q8k65bdwnl0cvh6ay8sqfdwy8n1zxg8n0bzdhabax";
       goPackagePath = "golang.org/x/net";
       goPackageAliases = [
         "code.google.com/p/go.net"
  
positive.code:   };
  
    govers = buildFromGitHub {
      rev = "0.0.0";
      date = "2015-01-09";
      owner = "rogpeppe";
      repo = "govers";
      sha256 = "1sf45zbc18m03imqadrhf7kqsqvyd4700svjv9jfz35wz5m0cv4h";
      dontRenameImports = true;
    };
  
    golang-lru = buildFromGitHub {
      date = "2016-02-07";
      rev = "0.0.0";
      owner  = "hashicorp";
      repo   = "golang-lru";
      sha256 = "0ahlg4fvdn9904pdgdmyym7mcfh07bcsb6b2rb7kdqijh509j0wk";
    };
  
    golang-petname = buildFromGitHub {
  
negative.code:   };
  
    serf = buildFromGitHub {
      rev = "v0.7.0";
      owner  = "hashicorp";
      repo   = "serf";
      sha256 = "1qzphmv2kci14v5xis08by1bhl09a3yhjy0glyh1wk0s96mx2d1b";
  
      buildInputs = [
        net circbuf armon_go-metrics ugorji_go go-syslog logutils mdns memberlist
  