anchor.diff:    eslint-plugin-babel = nodeEnv.buildNodePackage {
       name = "eslint-plugin-babel";
       packageName = "eslint-plugin-babel";
  -    version = "4.1.2";
  +    version = "5.0.0";
       src = fetchurl {
  -      url = "https://registry.npmjs.org/eslint-plugin-babel/-/eslint-plugin-babel-4.1.2.tgz";
  -      sha1 = "79202a0e35757dd92780919b2336f1fa2fe53c1e";
  +      url = "https://registry.npmjs.org/eslint-plugin-babel/-/eslint-plugin-babel-5.0.0.tgz";
  +      sha512 = "3swzh38sin3ik3rawwylvcbh4qqsbdn5g1xzk2f2d288pxvlaq7g6szzryyl0rnlyind778w0awqhqx28wrjrhbakxmjhi8maxs9wnw";
       };
       dependencies = [
  -      (sources."eslint-4.18.2" // {
  +      sources."eslint-rule-composer-0.1.1"
  +      (sources."eslint-4.19.1" // {
           dependencies = [
             (sources."ajv-5.5.2" // {
               dependencies = [
  
positive.code:               sources."js-tokens-3.0.2"
              ];
            })
            (sources."chalk-2.3.2" // {
              dependencies = [
                (sources."ansi-styles-3.2.1" // {
                  dependencies = [
  
negative.code:               sources."path-is-absolute-1.0.1"
              ];
            })
            sources."globals-11.4.0"
            sources."ignore-3.3.7"
            sources."imurmurhash-0.1.4"
            (sources."inquirer-3.3.0" // {
              dependencies = [
                sources."ansi-escapes-3.1.0"
                (sources."cli-cursor-2.1.0" // {
                  dependencies = [
                    (sources."restore-cursor-2.0.0" // {
  