anchor.diff:      owner = "onsi";
       repo = "ginkgo";
       sha256 = "160a651a4x5wdafq8zcfpyk0qyl4cmk67dd15844i6sfh8qbj2vp";
  -    buildInputs = [
  +    propagatedBuildInputs = [
         sys
  +      tail
       ];
     };
   
  
positive.code:       gogo_protobuf
        goleveldb
        groupcache
        net
        notify
        osext
  
negative.code:     propagatedBuildInputs = [
        go-digest
        docker_go-metrics
        image-spec
        logrus
        mux
        net
  