/usr/share/common-lisp/systems/cl-irc.asd is in cl-irc 1:0.8.1-dfsg-3.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/common-lisp/systems/../source/cl-irc/cl-irc.asd
/usr/share/common-lisp/systems/../source/cl-irc/cl-irc.asd