Examples: one two

The relevant error message is:
error: error: the argument '--default-host <DEFAULT_HOST>' cannot be used multiple times
which is odd because the logs above that show we're using that argument exactly once:
curl https://sh.rustup.rs -sSf | sh -s – -y --no-modify-path --default-host x86_64-pc-windows-msvc

I wonder if there's a bug in the version of rustup that came out last week.