/usr/share/lua/5.1/ is in lua-json 1.3.3-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/lua/5.1/json/
/usr/share/lua/5.1/json.lua
/usr/share/lua/5.1/json/decode/
/usr/share/lua/5.1/json/decode.lua
/usr/share/lua/5.1/json/decode/composite.lua
/usr/share/lua/5.1/json/decode/number.lua
/usr/share/lua/5.1/json/decode/others.lua
/usr/share/lua/5.1/json/decode/state.lua
/usr/share/lua/5.1/json/decode/strings.lua
/usr/share/lua/5.1/json/decode/util.lua
/usr/share/lua/5.1/json/encode/
/usr/share/lua/5.1/json/encode.lua
/usr/share/lua/5.1/json/encode/array.lua
/usr/share/lua/5.1/json/encode/calls.lua
/usr/share/lua/5.1/json/encode/number.lua
/usr/share/lua/5.1/json/encode/object.lua
/usr/share/lua/5.1/json/encode/others.lua
/usr/share/lua/5.1/json/encode/output.lua
/usr/share/lua/5.1/json/encode/output_utility.lua
/usr/share/lua/5.1/json/encode/strings.lua
/usr/share/lua/5.1/json/util.lua