I'm not entirely confident this is what we want, but I am confident that we can do better than
File "/root/project/carthage/carthage/modeling/implementation.py", line 484, in _integrate_containment
propagate_provider(k, v, options)
File "/root/project/carthage/carthage/modeling/implementation.py", line 436, in propagate_provider
outer_constraints = outer_key.constraints
NameError: free variable 'outer_key' referenced before assignment in enclosing scope
I'm not entirely confident this is what we want, but I am confident that we can do better than