/usr/lib/ghc-doc/hoogle/lrucache.txt is in libghc-lrucache-doc 1.1.1.3-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-lrucache-doc/html/lrucache.txt
/usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-lrucache-doc/html/lrucache.txt