/usr/share/lua/5.1/ is in luarocks 2.0.9-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/lua/5.1/luarocks/
/usr/share/lua/5.1/luarocks/add.lua
/usr/share/lua/5.1/luarocks/admin_remove.lua
/usr/share/lua/5.1/luarocks/build/
/usr/share/lua/5.1/luarocks/build.lua
/usr/share/lua/5.1/luarocks/build/builtin.lua
/usr/share/lua/5.1/luarocks/build/cmake.lua
/usr/share/lua/5.1/luarocks/build/command.lua
/usr/share/lua/5.1/luarocks/build/make.lua
/usr/share/lua/5.1/luarocks/cache.lua
/usr/share/lua/5.1/luarocks/cfg.lua
/usr/share/lua/5.1/luarocks/command_line.lua
/usr/share/lua/5.1/luarocks/deps.lua
/usr/share/lua/5.1/luarocks/dir.lua
/usr/share/lua/5.1/luarocks/download.lua
/usr/share/lua/5.1/luarocks/fetch/
/usr/share/lua/5.1/luarocks/fetch.lua
/usr/share/lua/5.1/luarocks/fetch/cvs.lua
/usr/share/lua/5.1/luarocks/fetch/git.lua
/usr/share/lua/5.1/luarocks/fetch/git_file.lua
/usr/share/lua/5.1/luarocks/fetch/hg.lua
/usr/share/lua/5.1/luarocks/fetch/sscm.lua
/usr/share/lua/5.1/luarocks/fetch/svn.lua
/usr/share/lua/5.1/luarocks/fs/
/usr/share/lua/5.1/luarocks/fs.lua
/usr/share/lua/5.1/luarocks/fs/lua.lua
/usr/share/lua/5.1/luarocks/fs/unix/
/usr/share/lua/5.1/luarocks/fs/unix.lua
/usr/share/lua/5.1/luarocks/fs/unix/tools.lua
/usr/share/lua/5.1/luarocks/fs/win32/
/usr/share/lua/5.1/luarocks/fs/win32.lua
/usr/share/lua/5.1/luarocks/fs/win32/tools.lua
/usr/share/lua/5.1/luarocks/help.lua
/usr/share/lua/5.1/luarocks/index.lua
/usr/share/lua/5.1/luarocks/install.lua
/usr/share/lua/5.1/luarocks/list.lua
/usr/share/lua/5.1/luarocks/loader.lua
/usr/share/lua/5.1/luarocks/make.lua
/usr/share/lua/5.1/luarocks/make_manifest.lua
/usr/share/lua/5.1/luarocks/manif.lua
/usr/share/lua/5.1/luarocks/manif_core.lua
/usr/share/lua/5.1/luarocks/new_version.lua
/usr/share/lua/5.1/luarocks/pack.lua
/usr/share/lua/5.1/luarocks/path.lua
/usr/share/lua/5.1/luarocks/persist.lua
/usr/share/lua/5.1/luarocks/refresh_cache.lua
/usr/share/lua/5.1/luarocks/remove.lua
/usr/share/lua/5.1/luarocks/rep.lua
/usr/share/lua/5.1/luarocks/require.lua
/usr/share/lua/5.1/luarocks/search.lua
/usr/share/lua/5.1/luarocks/show.lua
/usr/share/lua/5.1/luarocks/site_config.lua
/usr/share/lua/5.1/luarocks/tools/
/usr/share/lua/5.1/luarocks/tools/patch.lua
/usr/share/lua/5.1/luarocks/tools/tar.lua
/usr/share/lua/5.1/luarocks/tools/zip.lua
/usr/share/lua/5.1/luarocks/type_check.lua
/usr/share/lua/5.1/luarocks/unpack.lua
/usr/share/lua/5.1/luarocks/util.lua
/usr/share/lua/5.1/luarocks/validate.lua