anchor.diff:      version = 3;
       owner = "cheggaaa";
       repo = "pb";
  -    rev = "v1.0.15";
  -    sha256 = "1fchaz4sqapqc673d9jng3phlczqpxbabhlzlyhdpspndv5dq7j9";
  +    rev = "v1.0.16";
  +    sha256 = "1qk6wwl0v00q21r0brzdsgxnq37h1xhbchhmgbawq9advfd7k747";
       goPackagePath = "gopkg.in/cheggaaa/pb.v1";
       propagatedBuildInputs = [
         go-runewidth
  
positive.code:       logrus
        sys
      ];
    };
  
    moby_lib = moby.override {
  
negative.code: 
    docker_cli = buildFromGitHub {
      version = 3;
      date = "2017-08-02";
      rev = "68c27d7347cadc0eeb5e53fd5fd71cdc55a47a8d";
      owner = "docker";
      repo = "cli";
      sha256 = "05g8wng8pjkir5ds5v02c3r1lgna44rphc7141m2082mvwy3p206";
      subPackages = [
        "cli/config/configfile"
        "cli/config/credentials"
  