anchor.diff:    };
   
     rabbit-hole = buildFromGitHub {
  -    rev = "v1.0.0";
  +    rev = "88550829bcdcf614361c73459c903578eb44074e";
       owner  = "michaelklishin";
       repo   = "rabbit-hole";
  -    sha256 = "1gff1h7kzgmkc4f9l1kx6lx21is421xs0l7v8szf7pzdpczrf15r";
  +    sha256 = "1g6yz793g97mqnm07dsfvbkzl3va81hv5fhlx550rpsdciprc2zb";
  +    date = "2016-07-06";
     };
   
     raft = buildFromGitHub {
  -    date = "2016-06-21";
  -    rev = "7877922807c08bb7ae6e7ff46ffeada14041034e";
  +    date = "2016-07-07";
  +    rev = "5f14b7233050fc857f722c9cc282360a1f6219b5";
       owner  = "hashicorp";
       repo   = "raft";
  -    sha256 = "1zf2ac0ib21x8amx4xgmbwqyk22jv4i2mk1m9mwpaz8afzniji6h";
  +    sha256 = "0ql6zaazgn6fcl3p8w69md132vqxpg3jw1mdsrz4wlbzxay9fx41";
       propagatedBuildInputs = [ armon_go-metrics ugorji_go ];
     };
   
  
positive.code:   };
  
    sys = buildFromGitHub {
      rev = "62bee037599929a6e9146f29d10dd5208c43507d";
      date = "2016-06-15";
      owner  = "golang";
      repo   = "sys";
      sha256 = "1qkhj4c91c576lqn27pw7q83q7l045ghc71mxd0j5a3mlc0w5737";
      goPackagePath = "golang.org/x/sys";
      goPackageAliases = [
        "github.com/golang/sys"
  
negative.code:       prometheus_procfs
        beorn7_perks
      ];
      date = "2016-07-12";
    };
  
    prometheus_client_model = buildFromGitHub {
  