anchor.diff:    };
   
     hil = buildFromGitHub {
  -    date = "2016-04-18";
  -    rev = "01dc167cd239b7ccab78a683b866536cd5904719";
  +    date = "2016-04-08";
  +    rev = "6215360e5247e7c4bdc317a5f95e3fa5f084a33b";
       owner  = "hashicorp";
       repo   = "hil";
  -    sha256 = "1zbs2yv0fx18k3qmk3262mj68xaz3hz7g24vw16iygdnfz02r5y8";
  +    sha256 = "6b3ab530f6980279edb5a1994226adefc377b70aa3e993b5d29c7d498d5cdbd4";
       propagatedBuildInputs = [
         mapstructure
         reflectwalk
  
positive.code:   };
  
    runtime-spec = buildFromGitHub {
      rev = "v0.5.0";
      owner  = "opencontainers";
      repo   = "runtime-spec";
      sha256 = "1jv82zyvhdg5pqbdm0265i6rsc4mzwxll8cjzggfhwagypn467w5";
      buildInputs = [
        gojsonschema
      ];
  
negative.code:   };
  
    muxado = buildFromGitHub {
      date = "2014-03-12";
      rev = "f693c7e88ba316d1a0ae3e205e22a01aa3ec2848";
      owner  = "inconshreveable";
      repo   = "muxado";
      sha256 = "db9a65b811003bcb48d1acefe049bb12c8de232537cf07e1a4a949a901d807a2";
    };
  
    mysql = buildFromGitHub {
  