Something happened to the mirror at Toudai. $ cat <<EOF | nc rsync4.jp.gentoo.org 21 > USER anonymous > PASS me@localhost > EOF 220 ProFTPD 1.2.9 Server (ftp.ecc.u-tokyo.ac.jp) [sb.itc.u-tokyo.ac.jp] 331 Anonymous login ok, send your complete email address as your password. 530-Unable to set anonymous privileges. 530 Login incorrect.
Seems it got fixed in the meantime