[kristofferc]

I mean, this just looks like your run-of-the-mill bug, or? If you filter on the bug label on GitHub you will find many more. It would be interesting to try figure out what is special about your setup since no one has reported this bug since it got introduced (and it doesn't show up on any of the CI).

[StefanKarpinski]

I was curious about that too. Many other people use Windows 10 and this is the first time this issue has come up, so there must be something else unusual going on here. If no one could install packages on Windows 10, we'd have heard about it.