An in-range update of @types/node is breaking the build 🚨

## The devDependency [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped) was updated from `10.12.21` to `10.12.22`.

🚨 [View failing branch](https://github.com/benjamn/recast/compare/master...benjamn:greenkeeper%2F%40types%2Fnode-10.12.22).

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

@types/node 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**.

Status Details

- ❌ **continuous-integration/travis-ci/push:** The Travis CI build failed ([Details](https://travis-ci.org/benjamn/recast/builds/490342837?utm_source=github_status&utm_medium=notification)).

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FAQ and help

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).

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Your [Greenkeeper](https://greenkeeper.io) Bot :palm_tree:

Start with the Greenkeeper failing branch and inspect Travis CI build 490342837 to identify what @types/node 10.12.22 breaks. Done means the dependency update no longer causes the project build to fail.

Written by the indexing model from the issue text.