anchor.diff:        inherit
           goPackagePath
           rev;
  -      date = "2017-10-24";
  +      date = "2017-10-31";
       };
  -    rev = "0bf971c28aa2a58853c3ea0a9bc60c9b3761234a";
  +    rev = "9ae0bf1fac9d6b6b388ab8811c3c85537b8adc10";
       goPackagePath = "google.golang.org/api";
       src = fetchzip {
         version = 3;
  
positive.code: 
    pprof = buildFromGitHub {
      version = 3;
      rev = "aa2869ad6d328268704e0ae87d443663627bf077";
      owner  = "google";
      repo   = "pprof";
      sha256 = "04am6351snddzqk2axpzxmv6wizc6xi8psckgcb26ymw4hj0ldx3";
      date = "2017-10-18";
      propagatedBuildInputs = [
        demangle
      ];
  
negative.code: 
    kubernetes-apimachinery = buildFromGitHub {
      version = 3;
      rev = "kubernetes-1.8.2";
      owner  = "kubernetes";
      repo   = "apimachinery";
      sha256 = "0kkrn00ajmgajhh1g2wb0nc42myh7s4xr1m0n8waqv8rwph248wn";
      goPackagePath = "k8s.io/apimachinery";
      excludedPackages = "\\(testing\\|fuzzer\\)";
      propagatedBuildInputs = [
  