Problems with rails-composer

[NathanZook]

This guy really wants to support slim, but there are tool problems.

Please look at files
https://github.com/RailsApps/rails-composer/tree/master/files/app/views/layouts/application.html.slim
https://github.com/RailsApps/rails-composer/tree/master/files/app/views/users/index.html.slim
https://github.com/RailsApps/rails-composer/tree/master/files/app/views/users/_user.html.slim

There are multiple errors when these are run through erm2haml | haml2slim. Since haml is considered stable, I expect the problems will lie here.