/usr/include/boost/hana/concept/ is in libboost1.65-dev 1.65.1+dfsg-0ubuntu5.
This file is owned by root:root, with mode 0o755.
..
/usr/include/boost/hana/concept/applicative.hpp
/usr/include/boost/hana/concept/comonad.hpp
/usr/include/boost/hana/concept/comparable.hpp
/usr/include/boost/hana/concept/constant.hpp
/usr/include/boost/hana/concept/euclidean_ring.hpp
/usr/include/boost/hana/concept/foldable.hpp
/usr/include/boost/hana/concept/functor.hpp
/usr/include/boost/hana/concept/group.hpp
/usr/include/boost/hana/concept/hashable.hpp
/usr/include/boost/hana/concept/integral_constant.hpp
/usr/include/boost/hana/concept/iterable.hpp
/usr/include/boost/hana/concept/logical.hpp
/usr/include/boost/hana/concept/metafunction.hpp
/usr/include/boost/hana/concept/monad.hpp
/usr/include/boost/hana/concept/monad_plus.hpp
/usr/include/boost/hana/concept/monoid.hpp
/usr/include/boost/hana/concept/orderable.hpp
/usr/include/boost/hana/concept/product.hpp
/usr/include/boost/hana/concept/ring.hpp
/usr/include/boost/hana/concept/searchable.hpp
/usr/include/boost/hana/concept/sequence.hpp
/usr/include/boost/hana/concept/struct.hpp