/usr/lib/ghc-doc/hoogle/libghc-cipher-aes-doc.txt is in libghc-cipher-aes-doc 0.2.11-5build7.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-cipher-aes-doc/html/cipher-aes.txt