[racket-dev] ssh git at git.racket-lang.org requires password

I'm trying to follow the PLT git instructions located here,

http://git.racket-lang.org/intro.html

It says that you should get back information about your permissions
when you connect to the gitolite server like so,

ssh git at git.racket-lang.org

But this is what happens when I try,

> ssh git at git.racket-lang.org
The authenticity of host 'git.racket-lang.org (129.10.115.116)' can't
be established.
RSA key fingerprint is db:57:c0:62:2b:73:02:04:6f:af:4a:9c:d6:a5:a7:4e.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'git.racket-lang.org,129.10.115.116' (RSA)
to the list of known hosts.
git at git.racket-lang.org's password:

And then I don't know how to go further.

Thanks for your time,

Horace.