Visual Studio Build Tools license

When installing Rust on Windows using the default options, you are prompted to install the Visual Studio Build Tools. I had a read of the license for the Build Tools, and noticed that it says the following in section 1:

You may install and use any number of copies of the software to use solely with Visual Studio Community, Visual Studio Professional, and Visual Studio Enterprise, to develop and test your applications.

The VSCode maintainers have interpreted this as meaning that you need to be actively developing the software using Visual Studio, as shown by this GitHub issue.

Could someone please help me to understand what the license means when it comes to using Rust.

There was some discussion of this on Reddit:

This is really something you'd need to contact Microsoft about for a definitive answer.