anchor.diff:  
     prometheus_client_golang = buildFromGitHub {
       version = 3;
  -    rev = "ab4214782d022e867e3195b4c9ddb1ca45413382";
  +    rev = "77934284f4f639bef201d9f7752effdaeb9c3c60";
       owner = "prometheus";
       repo = "client_golang";
  -    sha256 = "0viiyviclw8m1py8y48w5vnyq6j6vqq2b7v511hpsibfn9wp0n86";
  +    sha256 = "05443ap7lc8x0nxgzrrfhmrv7sn8j8kcbrhiq42430mnlcz2yw58";
       propagatedBuildInputs = [
         net
         protobuf
  
positive.code: 
    aws-sdk-go = buildFromGitHub {
      version = 3;
      rev = "v1.10.4";
      owner  = "aws";
      repo   = "aws-sdk-go";
      sha256 = "0f9zfdnhqbadmnn825yy4vnq27isjm7lr0n7m66j2abjpvidns36";
      excludedPackages = "\\(awstesting\\|example\\)";
      buildInputs = [
        tools
  
negative.code: 
    docker_cli = buildFromGitHub {
      version = 3;
      date = "2017-06-30";
      rev = "0b050a599f04d8401c04493f9c7f787b74fd6511";
      owner = "docker";
      repo = "cli";
      sha256 = "0sqwzdf7211arby3l64j58mn7s0iffxja4srrfhvfrr0711kgw1b";
      subPackages = [
        "cli/config/configfile"
        "opts"
  