anchor.diff:        testify
       ];
       meta.useUnstable = true;
  -    date = "2016-12-19";
  +    date = "2017-01-12";
     };
   
     cupcake_rdb = buildFromGitHub {
  
positive.code:     version = 2;
      owner = "pkg";
      repo = "sftp";
      rev = "e59687e8fa2ed36b4c997df28621fb8720ffc767";
      date = "2017-01-07";
      sha256 = "14qwzlxbih79399zyamnw0ai0b7h6rjvb3wm0knmk2hr0wmh2vjf";
      propagatedBuildInputs = [
        crypto
        errors
  
negative.code: 
    net = buildFromGitHub {
      version = 2;
      rev = "0ab64c594a6a5489089faa1e7b2b541110f31eb5";
      date = "2017-01-06";
      owner  = "golang";
      repo   = "net";
      sha256 = "1q3fh42bfwj7bjskffrdlcwnbh4rk2lrz54719fvb3vn3wj87vpd";
      goPackagePath = "golang.org/x/net";
      goPackageAliases = [
        "github.com/hashicorp/go.net"
  