anchor.diff:  
     google-api-go-client = buildFromGitHub {
       version = 2;
  -    rev = "2262cc95b9819d2d038c72a2d6007aa7b9e12767";
  -    date = "2016-10-29";
  +    rev = "612451d2aabbf88084e4f1c48c0781073c0d5583";
  +    date = "2016-11-03";
       owner = "google";
       repo = "google-api-go-client";
  -    sha256 = "1fg753agb4is8l82a0ffzjmx3a1959fhb65k72330lj7zg7vj5vq";
  +    sha256 = "13rr2vmih0w34dvf37r689982araclv6cnk0nf3r2s5pgdr7hk9h";
       goPackagePath = "google.golang.org/api";
       goPackageAliases = [
         "github.com/google/google-api-client"
  
positive.code: 
    go-lxc_v2 = buildFromGitHub {
      version = 2;
      rev = "c4f2de4edf482ad2846c200752c6e4bac7fc3a74";
      owner  = "lxc";
      repo   = "go-lxc";
      sha256 = "0qman12hbjd8kmcw5lzda664fl71c9vh3qrf7j8qyhrq3g145i76";
      goPackagePath = "gopkg.in/lxc/go-lxc.v2";
      buildInputs = [
        pkgs.lxc
      ];
      date = "2016-10-12";
    };
  
    go-lz4 = buildFromGitHub {
  
negative.code: 
    google-cloud-go = buildFromGitHub {
      version = 2;
      date = "2016-11-04";
      rev = "3dcec5a15fa0b38b716203ca66128237d0947a1c";
      owner = "GoogleCloudPlatform";
      repo = "google-cloud-go";
      sha256 = "1gf63f7ng5g7b3vv8zb6kavfn07krnck2ia7s8wa1ql7xj0mcz75";
      goPackagePath = "cloud.google.com/go";
      goPackageAliases = [
        "google.golang.org/cloud"
  