Or at least Microsoft Visual R++
One reason of why I'm using Rust is because it's built by a group of people that I like, and Microsoft is not on that list.
However, I always keep a open-mind, I mean, I don't see anybody will be hurt if Microsoft become a direct contributor of Rust language itself. In fact, I could like Microsoft a bit if they did invest in Rust. I hope they do that <delete>instead of trying to fork things/build something alike (if that's the case here)</delete> (I watched their intro, their design is different than Rust and I somehow like what they did there).
If someone had told me ten years ago that my favourite code editing environment on the Linux desktop ten years later would be browser-tech-based, MIT-licensed, and made by Microsoft, I'd have stared at them like they had just grown a second head. But here we are. Interesting times, man.