anchor.diff:    };
   
     muxado = buildFromGitHub {
  -    date = "2016-06-21";
  -    rev = "ae9295605c1ab40eda134187357025d368f68c84";
  +    date = "2014-03-12";
  +    rev = "f693c7e88ba316d1a0ae3e205e22a01aa3ec2848";
       owner  = "inconshreveable";
       repo   = "muxado";
  -    sha256 = "0j0imiwzcp6fykd6l3z0jknnq14kzyab9j3qym8r6rf03v1nd1r8";
  +    sha256 = "db9a65b811003bcb48d1acefe049bb12c8de232537cf07e1a4a949a901d807a2";
     };
   
     mysql = buildFromGitHub {
  
positive.code:   };
  
    go-github = buildFromGitHub {
      date = "2016-06-15";
      rev = "07995e49c22dcb1e372c88ff12793b0194433e1c";
      owner = "google";
      repo = "go-github";
      sha256 = "1rvk6bi5fls3r0q2x9mgv9jx9sgm191yabm0cfkxz3fw4v7vnkbg";
      buildInputs = [ oauth2 ];
      propagatedBuildInputs = [ go-querystring ];
    };
  
negative.code:   };
  
    hil = buildFromGitHub {
      date = "2016-04-08";
      rev = "6215360e5247e7c4bdc317a5f95e3fa5f084a33b";
      owner  = "hashicorp";
      repo   = "hil";
      sha256 = "6b3ab530f6980279edb5a1994226adefc377b70aa3e993b5d29c7d498d5cdbd4";
      propagatedBuildInputs = [
        mapstructure
        reflectwalk
  