/usr/lib/ghc-doc/hoogle/hakyll.txt is in libghc-hakyll-doc 4.4.3.0-1build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-hakyll-doc/html/hakyll.txt
/usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-hakyll-doc/html/hakyll.txt