An in-range update of webpack is breaking the build 🚨


## The devDependency [webpack](https://github.com/webpack/webpack) was updated from `4.28.4` to `4.29.0`.

🚨 [View failing branch](https://github.com/matteocng/react-flag-icon-css-example-multi/compare/master...matteocng:greenkeeper%2Fwebpack-4.29.0).

This version is **covered** by your **current version range** and after updating it in your project **the build failed**.




webpack is a devDependency of this project. It **might not break your production code or affect downstream projects**, but probably breaks your build or test tools, which may **prevent deploying or publishing**.



<details>
<summary>Status Details</summary>

- ❌ **continuous-integration/travis-ci/push:** The Travis CI build failed ([Details](https://travis-ci.org/matteocng/react-flag-icon-css-example-multi/builds/482100740?utm_source=github_status&utm_medium=notification)).
</details>


---

<details>
<summary>Release Notes for v4.29.0</summary>

<h1>Features</h1>
<ul>
<li>update acorn to v6</li>
<li>limit the number of in parallel written output files to 15</li>
<li>add <code>output.futureEmitAssets</code> which gives the emitting logic of webpack 5
<ul>
<li>assets are replaced with SizeOnlySources</li>
<li>reading assets after emitting is no longer allowed</li>
<li>This allows memory to be garbage-collected</li>
</ul>
</li>
</ul>
</details>

<details>
<summary>Commits</summary>
<p>The new version differs by 10 commits.</p>
<ul>
<li><a href="https://urls.greenkeeper.io/webpack/webpack/commit/25bccd4c487a5bf743efc62947d81a8eaa81a90f"><code>25bccd4</code></a> <code>4.29.0</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack/commit/6389e41e4c65bf32a916e6fffa5d65f66538d483"><code>6389e41</code></a> <code>Merge pull request #8642 from webpack/memory/future-emit-assets</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack/commit/6e383cfbab3b18b88cccde4d4ceb99234d3fce8c"><code>6e383cf</code></a> <code>make test for Source.buffer more strict</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack/commit/aaf85dbd1c221eb1788dd46894d24ebd9c62aa62"><code>aaf85db</code></a> <code>add output.futureEmitAssets</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack/commit/03ffa48acc92360bc8568c54dc159d749b32292a"><code>03ffa48</code></a> <code>Merge pull request #8639 from webpack/memory/limit-parallelism</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack/commit/2b2c17ffb60e7e73e6744f31caeec5e1cd06a891"><code>2b2c17f</code></a> <code>Merge pull request #8598 from kiliancs/acorn6</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack/commit/80514cc28274c9075c6f073e0fe19a2322cfb7d5"><code>80514cc</code></a> <code>Add ts declarations</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack/commit/78abf04fc3fad0ac72e853d8ffe4cb777df687fd"><code>78abf04</code></a> <code>Use eachLimit instead even though forEachLimit apears to be an alias...</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack/commit/9cb42256c67f77b24b04e1e19bd27c866febad6f"><code>9cb4225</code></a> <code>forEach to forEachLimit</code></li>
<li><a href="https://urls.greenkeeper.io/webpack/webpack/commit/ef671325899210503790c2173da194c5cab5f5c7"><code>ef67132</code></a> <code>Upgrade acorn to v6</code></li>
</ul>
<p>See the <a href="https://urls.greenkeeper.io/webpack/webpack/compare/fdb6b139b94273e5b18870262c193a93f65132e8...25bccd4c487a5bf743efc62947d81a8eaa81a90f">full diff</a></p>
</details>


<details>
<summary>FAQ and help</summary>

There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html). If those don’t help, you can always [ask the humans behind Greenkeeper](https://github.com/greenkeeperio/greenkeeper/issues/new).
</details>

---


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An in-range update of webpack is breaking the build 🚨 #7

The devDependency webpack was updated from `4.28.4` to `4.29.0`.

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An in-range update of webpack is breaking the build 🚨 #7

Description

The devDependency webpack was updated from 4.28.4 to 4.29.0.

Features

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Metadata

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Development

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The devDependency webpack was updated from `4.28.4` to `4.29.0`.