anchor.diff:  
     docker = buildFromGitHub {
       version = 2;
  -    rev = "90d10203a40d9f2e4247693d2154bdf0bdb6a07c";
  +    rev = "851d9149b1e9d67811b227ed7cdf1fc6734ccdda";
       owner = "docker";
       repo = "docker";
  -    sha256 = "0hpcaxmbgyb76ch63w6mgwj27qmla1jfhncyg8nbkfcrrfs49h02";
  +    sha256 = "03065dki18j543mbwxnplfw730870lzvf4iwjygdvysp3bnw3s73";
       meta.useUnstable = true;
  -    date = "2016-11-10";
  +    date = "2016-11-11";
     };
   
     docker_for_runc = buildFromGitHub {
  
positive.code: 
    consul = buildFromGitHub {
      version = 2;
      rev = "v0.7.0";
      owner = "hashicorp";
      repo = "consul";
      sha256 = "1xfq0c25z1qsv3psdqw4ydyvmlxdp971dqrky1panmw7b2s9hyi3";
  
      buildInputs = [
        datadog-go circbuf armon_go-metrics go-radix speakeasy bolt
  
negative.code: 
    raft_v2 = buildFromGitHub {
      version = 2;
      date = "2016-11-09";
      # Use the library-v2-stage-one branch until it is merged
      # into master.
      rev = "aaad9f10266e089bd401e7a6487651a69275641b";
      owner  = "hashicorp";
      repo   = "raft";
      sha256 = "b5a3392c27c22bbd44bc7978ca61f9ce90658caf51bebef7b4db11788d4d5e80";
      propagatedBuildInputs = [
        armon_go-metrics
        logxi
        ugorji_go
      ];
      meta.autoUpdate = false;
    };
  
  