/usr/lib/ghc-doc/hoogle/http-conduit.txt is in libghc-http-conduit-doc 1.9.5.2-1build5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-http-conduit-doc/html/http-conduit.txt