rockspec source is wrong

[teto]

Hi,

I am updating the lua package set for my linux distribution nixos when I hit an issue with this package.
I think the source you set is not detected as a git one and thus everything fails, even luarocks:

 luarocks install cyrussasl --local
Installing https://luarocks.org/cyrussasl-1.1.0-3.rockspec

Error: Couldn't extract archive /tmp/luarocks_luarocks-source-cyrussasl-1.1.0-3-1UOwBy/lua-cyrussasl: unrecognized filename extension