anchor.diff:    };
   
     go-colorable = buildFromGitHub {
  -    version = 2;
  -    rev = "v0.0.7";
  +    version = 3;
  +    rev = "v0.0.8";
       owner  = "mattn";
       repo   = "go-colorable";
  -    sha256 = "0r7qqrdpy19whvkifcpc6w53am83rq05vmax1ajaw2ywl0gwvvlq";
  -    buildInputs = [
  +    sha256 = "10pfic7m85xwf23bvj1dk3n70sfaji3n22j1iv8x4lqla5fhkz2d";
  +    propagatedBuildInputs = [
         go-isatty
       ];
     };
  
positive.code:   };
  
    gitmap = buildFromGitHub {
      version = 2;
      rev = "dcb907b39a0690430d435eb8f63cd8811961231f";
      date = "2017-02-17";
      owner = "bep";
      repo = "gitmap";
      sha256 = "1zykf519xplb23lj0rjggpgbmd375l0zhzx29q4vxrsppyjsqzkk";
    };
  
    gjson = buildFromGitHub {
  
negative.code: 
    teleport = buildFromGitHub {
      version = 3;
      rev = "v2.2.0";
      owner = "gravitational";
      repo = "teleport";
      sha256 = "1qzar36ilgk9r5a2pkqmlvvq83rz61a26l2sqkbfxcka7434bnwy";
      buildInputs = [
        aws-sdk-go
        bolt
  