anchor.diff:  
     google-cloud-go = buildFromGitHub {
       version = 3;
  -    date = "2017-06-23";
  -    rev = "9d0d2cf2897dfcd18a86e1666038caf1c38e77f8";
  +    date = "2017-06-26";
  +    rev = "2cbf161fc57d9dda2921f3d7841e0b683fa09d3e";
       owner = "GoogleCloudPlatform";
       repo = "google-cloud-go";
  -    sha256 = "1d1mbrw953sw6gf1mnwhip8hp9pnbw3grjwb4v5134kx56zgcm9g";
  +    sha256 = "0g827xqvbkxyfzc6pb2dc5cdmsskp55smlw42m5js9rvvsp93z0z";
       goPackagePath = "cloud.google.com/go";
       goPackageAliases = [
         "google.golang.org/cloud"
  
positive.code:     version = 3;
      owner = "ncw";
      repo = "rclone";
      date = "2017-06-23";
      rev = "d55f8f0492282a9a624981f5320dcc30fc1b378b";
      sha256 = "11f2av0v0cskxas6wg8c5glnfd80b0rv0rd25sckgk8hnwlizpak";
      propagatedBuildInputs = [
        aws-sdk-go
        cgofuse
  
negative.code:     version = 3;
      owner = "pelletier";
      repo = "go-toml";
      rev = "4a000a21a414d139727f616a8bb97f847b1b310b";
      sha256 = "0s2a0zqrfv57dv1973zyg51ls1crccjk4wk86l6g1gy05nlhm353";
      propagatedBuildInputs = [
        go-buffruneio
      ];
      meta.useUnstable = true;
      date = "2017-06-25";
    };
  
    go-units = buildFromGitHub {
  