cffi.verify is broken for some reason.

This is the traceback:
Traceback (most recent call last):
  File "setup.py", line 3, in <module>
    import pyr3
  File "/home/omer/Documents/Projects/pyr3/pyr3/__init__.py", line 150, in <module>
    """, libraries=['r3'], ext_package='pyr3', modulename='pyr3ext')
  File "/home/omer/.virtualenvs/pyr3/local/lib/python2.7/site-packages/cffi/api.py", line 341, in verify
    lib = self.verifier.load_library()
  File "/home/omer/.virtualenvs/pyr3/local/lib/python2.7/site-packages/cffi/verifier.py", line 75, in load_library
    return self._load_library()
  File "/home/omer/.virtualenvs/pyr3/local/lib/python2.7/site-packages/cffi/verifier.py", line 151, in _load_library
    return self._vengine.load_library()
  File "/home/omer/.virtualenvs/pyr3/local/lib/python2.7/site-packages/cffi/vengine_cpy.py", line 142, in load_library
    self._load(module, 'loading')
  File "/home/omer/.virtualenvs/pyr3/local/lib/python2.7/site-packages/cffi/vengine_cpy.py", line 200, in _load
    method(tp, realname, module, **kwds)
  File "/home/omer/.virtualenvs/pyr3/local/lib/python2.7/site-packages/cffi/vengine_cpy.py", line 418, in _loading_cpy_struct
    self._loading_struct_or_union(tp, 'struct', name, module)
  File "/home/omer/.virtualenvs/pyr3/local/lib/python2.7/site-packages/cffi/vengine_cpy.py", line 492, in _loading_struct_or_union
    function = getattr(module, layoutfuncname)
AttributeError: struct _edge: 'module' object has no attribute '_cffi_layout_struct__edge'