/usr/lib/ghc-doc/hoogle/libghc-cryptonite-doc.txt is in libghc-cryptonite-doc 0.23-2build5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-cryptonite-doc/html/cryptonite.txt