anchor.diff:  
     net = buildFromGitHub {
       version = 3;
  -    rev = "570fa1c91359c1869590e9cedf3b53162a51a167";
  -    date = "2017-07-04";
  +    rev = "054b33e6527139ad5b1ec2f6232c3b175bd9a30c";
  +    date = "2017-07-06";
       owner  = "golang";
       repo   = "net";
  -    sha256 = "0xs42d3c591bhhskxji64hqmn4hx66fgirl4j2lhh0gjgxvimbd8";
  +    sha256 = "0zf3s34kk0ipjqz8yp0rk22lbiszsasbjjmfcgmyj5p8cig3y18g";
       goPackagePath = "golang.org/x/net";
       goPackageAliases = [
         "github.com/hashicorp/go.net"
  
positive.code:     version = 3;
      owner = "ncw";
      repo = "rclone";
      date = "2017-07-05";
      rev = "51866fbd34b01574090365a02d8480093174f076";
      sha256 = "14mxwr8mmckm11rqgk4nfi98xchzwid24mj545jbv5mgkk7k6bbv";
      propagatedBuildInputs = [
        aws-sdk-go
        cgofuse
  
negative.code: 
    prometheus_common = buildFromGitHub {
      version = 3;
      date = "2017-07-06";
      rev = "fb369f752a7f8b880c4a5199af7bfcb8aaaabaa4";
      owner = "prometheus";
      repo = "common";
      sha256 = "1j8g90pp74b9hj1sdayri8pa7p4k6652l050ph6fi95bhmfxyz00";
      buildInputs = [
        net
        prometheus_client_model
  