anchor.diff:  
     debug = buildFromGitHub {
       version = 6;
  -    rev = "37b0a153249d1779281c77010c6a61cc4ae67b04";
  -    date = "2018-06-05";
  +    rev = "bd051a4465ee878585905cd46ae1ce5b96d132c7";
  +    date = "2018-07-09";
       owner = "golang";
       repo = "debug";
  -    sha256 = "005m4ak7gp42p9967k7lcpwki40v682y8nxysc4c5fr8cr06rnnd";
  +    sha256 = "0xx3d6nip92gdjg9gqszj2m3yip4bf9qfxbz5v0a6xn67faq3l1v";
       goPackagePath = "golang.org/x/debug";
       excludedPackages = "\\(testdata\\)";
       propagatedBuildInputs = [
         cobra
  +      readline
       ];
     };
   
     geo = buildFromGitHub {
       version = 6;
  -    rev = "e41ca803f92c4c1770133cfa5b4fc8249a7dbe82";
  +    rev = "9704f44198ae7ded10f812ef281d2e0075c37e0e";
       owner = "golang";
       repo = "geo";
  -    sha256 = "1ai46qpx9s79w9ccipiszjyzx1zl9vnzivcwycdgnc53hgvyy9b1";
  -    date = "2018-05-01";
  +    sha256 = "11a34c1kq4cjfz7fvdq5njcfbsmw9bwq27p36qfb4i5gchrr04li";
  +    date = "2018-07-26";
     };
   
     glog = buildFromGitHub {
  
positive.code:   };
  
    go-connections = buildFromGitHub {
      version = 5;
      rev = "7395e3f8aa162843a74ed6d48e79627d9792ac55";
      owner  = "docker";
      repo   = "go-connections";
      sha256 = "1556r9w8xh4am4xsl2lf681xqipjfhjhnx2krb40lnqq3dy6m8lc";
      propagatedBuildInputs = [
        errors
        go-winio
  
negative.code:     version = 6;
      owner = "whyrusleeping";
      repo = "progmeter";
      rev = "f3e57218a75b913eff88d49a52c1debf9684ea04";
      sha256 = "1x8vg3cakdgj4rm8raax842l4lxkqys4r128zi0lrqbwndv8f96l";
      date = "2018-07-25";
    };
  
    prometheus = buildFromGitHub {
      version = 6;
      rev = "v2.3.2";
      owner  = "prometheus";
      repo   = "prometheus";
      sha256 = "04sc3ksck5hff1w0491jrkf3a59y7zflxirsp4sg6nh689k089j2";
      buildInputs = [
        aws-sdk-go
        cockroach
  