What did I do wrong?

$ cvs -d :pserver:anonymous / cvs.ruby-lang.org:/home/cvs login
(Logging in to anonymous / cvs.ruby-lang.org)
CVS password: <type guest>

cvs login: authorization failed: server cvs.ruby-lang.org rejected access to
/home/cvs for user anonymous


-- 
Another process just forked, sir. Instructions?