[racket-dev] raco pkg install permission errors in 5.90?

I've been meaning to ask.

With 5.90, `raco pkg install` gives a ton of permission errors... but
works anyway.

Prior to 5.90 (e.g. with 5.3.5 and 5.3.6) this didn't happen.

I guess technically it is `raco setup` as run by `raco pkg install`.

Example transcript: https://gist.github.com/greghendershott/7565513

Is this as-intended and starting with 5.90 it needs to be `sudo`d?

(And if so, can someone explain more about why, and why there are
errors but it works anyway?)