anchor.diff:        })
         sources."css-what-2.1.3"
         sources."cssesc-3.0.0"
  -      (sources."cssnano-4.1.10" // {
  -        dependencies = [
  -          sources."postcss-7.0.32"
  -          sources."source-map-0.6.1"
  -          sources."supports-color-6.1.0"
  -        ];
  -      })
  -      (sources."cssnano-preset-default-4.0.7" // {
  -        dependencies = [
  -          sources."postcss-7.0.32"
  -          sources."source-map-0.6.1"
  -          sources."supports-color-6.1.0"
  -        ];
  -      })
  +      sources."cssnano-4.1.10"
  +      sources."cssnano-preset-default-4.0.7"
         sources."cssnano-util-get-arguments-4.0.0"
         sources."cssnano-util-get-match-4.0.0"
  -      (sources."cssnano-util-raw-cache-4.0.1" // {
  -        dependencies = [
  -          sources."postcss-7.0.32"
  -          sources."source-map-0.6.1"
  -          sources."supports-color-6.1.0"
  -        ];
  -      })
  +      sources."cssnano-util-raw-cache-4.0.1"
         sources."cssnano-util-same-parent-4.0.1"
         (sources."csso-4.0.3" // {
           dependencies = [
  
positive.code:       src = fetchurl {
          url = "https://registry.npmjs.org/yargs-parser/-/yargs-parser-18.1.3.tgz";
          sha512 = "o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==";
        };
      };
      "yargs-parser-4.2.1" = {
  
negative.code:         sha512 = "AiisoFqQ0vbGcZgQPY1cdP2I76glaVA/RauYR4G4thNFgkTqr90yXTo4LYX60Jl+sIlPNHHdGSwo01AvbKUSVQ==";
        };
      };
      "strict-uri-encode-1.1.0" = {
        name = "strict-uri-encode";
        packageName = "strict-uri-encode";
        version = "1.1.0";
        src = fetchurl {
          url = "https://registry.npmjs.org/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz";
          sha1 = "279b225df1d582b1f54e65addd4352e18faa0713";
        };
      };
      "string-replace-loader-2.3.0" = {
        name = "string-replace-loader";
        packageName = "string-replace-loader";
  