anchor.diff:          sha1 = "150e20b756590ad3f91093f25a4f2ad8bff30ba3";
         };
       };
  +    "process-nextick-args-2.0.0" = {
  +      name = "process-nextick-args";
  +      packageName = "process-nextick-args";
  +      version = "2.0.0";
  +      src = fetchurl {
  +        url = "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.0.tgz";
  +        sha512 = "0rw8xpqqkhs91722slvzf8icxfaimqp4w8zb3840jxr7r8n8035byl6dhdi5bm0yr6x7sdws0gf3m025fg6hqgaklwlbl4d7bah5l9j";
  +      };
  +    };
       "progress-string-1.2.2" = {
         name = "progress-string";
         packageName = "progress-string";
  
positive.code:         sha1 = "e714fe28cd8848aa34cdf2c9f242bbe2e15d1cd8";
        };
      };
      "bole-3.0.2" = {
        name = "bole";
        packageName = "bole";
        version = "3.0.2";
        src = fetchurl {
          url = "https://registry.npmjs.org/bole/-/bole-3.0.2.tgz";
          sha1 = "bc8a483ca94049da9b837c1ad11cdfebee6e0514";
        };
      };
      "boom-2.10.1" = {
        name = "boom";
        packageName = "boom";
  
negative.code:       sources."prettier-bytes-1.0.4"
        sources."pretty-hash-1.0.1"
        sources."process-0.5.2"
        sources."process-nextick-args-2.0.0"
        sources."progress-string-1.2.2"
        (sources."prompt-1.0.0" // {
          dependencies = [
  