anchor.diff:    };
   
     go-mssqldb = buildFromGitHub {
  -    rev = "8d4984e8baccbf5bfadd7f7e366fd61b7ccac38b";
  +    rev = "2a223b1644106bc7ca456c12cde55a80185813ef";
       owner = "denisenkom";
       repo = "go-mssqldb";
  -    sha256 = "0is28sa9mf6r3d831qpg6997xs00h21li61vsll2d9af5fydvm6m";
  -    date = "2015-03-11";
  +    sha256 = "045nj6bqxxg84d3v7y2pkf5qgwp15lvkbk20c05chzcr1gmbdfh1";
  +    date = "2016-05-15";
       buildInputs = [ crypto ];
     };
   
  
positive.code:   };
  
    govalidator = buildFromGitHub {
      rev = "5b6e9375cbf581a9008064f7216e816b568d6daa";
      owner = "asaskevich";
      repo = "govalidator";
      sha256 = "13h4ln4ziwaf3056mxblr8d7bxn7dypn6yfgqz5m615ibj5xqlax";
      date = "2016-04-23";
    };
  
    go-base58 = buildFromGitHub {
  
negative.code:     rev = "v0.6.4";
      owner = "hashicorp";
      repo = "consul";
      sha256 = "157g5j6a8jf762p308w6sy4byhcqqvm3il5iyjwf5ykavvjizz31";
  
      buildInputs = [
        datadog-go circbuf armon_go-metrics go-radix speakeasy bolt
  