/usr/share/doc/libghc-generic-deriving-doc/html/src/ is in libghc-generic-deriving-doc 1.4.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving-Base.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving-ConNames.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving-Enum.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving-Eq.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving-Foldable.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving-Functor.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving-Instances.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving-Show.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving-TH.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving-Traversable.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving-Uniplate.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/Generics-Deriving.html
/usr/share/doc/libghc-generic-deriving-doc/html/src/hscolour.css