rustup override remove does not work for windows root directories`

[brson]

If I'm in C:\

$ rustup override add nightly
$ rustup override remove
info: no override toolchain for 'C:\'

[pravic]

Not works with the root directory, as reported and confirmed.

[brson]

I was also able to reproduce the error you saw where rustc printed the wrong version for the "C:" override.