/usr/lib/ghc-doc/hoogle/libghc-crypto-cipher-tests-doc.txt is in libghc-crypto-cipher-tests-doc 0.0.11-7build9.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-crypto-cipher-tests-doc/html/crypto-cipher-tests.txt