Is there any news on this? I note neovim has been packaged anyway and that the last of the reported blocking bugs was marked done on 2016-01-01.
I ask in the interest of `corsix-th` which apparently uses busted, though as with neovim, upstream CI is in place: https://sources.debian.net/src/corsix-th/0.50-2/CorsixTH/Luatest/README.txt/