anchor.diff:        testify
       ];
       meta.useUnstable = true;
  -    date = "2016-12-15";
  +    date = "2016-12-19";
     };
   
     cupcake_rdb = buildFromGitHub {
  
positive.code: 
    oauth2 = buildFromGitHub {
      version = 2;
      rev = "96382aa079b72d8c014eb0c50f6c223d1e6a2de0";
      date = "2016-12-13";
      owner = "golang";
      repo = "oauth2";
      sha256 = "0654xmh4lrvsm71d51n15i3vhv5w6x5k4x6z8qgldm3wda7ipgdm";
      goPackagePath = "golang.org/x/oauth2";
      goPackageAliases = [ "github.com/golang/oauth2" ];
      propagatedBuildInputs = [
  
negative.code: 
    aws-sdk-go = buildFromGitHub {
      version = 2;
      rev = "v1.6.5";
      owner  = "aws";
      repo   = "aws-sdk-go";
      sha256 = "02g9f83fx9pykrkfgj3ln30vr3db8zya20vbc9sbmpsswjdj14zp";
      excludedPackages = "\\(awstesting\\|example\\)";
      buildInputs = [
        tools
  