/usr/lib/ghc-doc/hoogle/byteable.txt is in libghc-byteable-doc 0.1.1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-byteable-doc/html/byteable.txt
/usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-byteable-doc/html/byteable.txt