weird hypothesis error

gistfile1.txt

========================================================================== FAILURES ===========================================================================
______________________________________________________ test_audit_proofs_are_valid_with_alternative_impl ______________________________________________________

    @given(st.lists(st.binary(), max_size=99), st.integers(min_value=0, max_value=99))
>   def test_audit_proofs_are_valid_with_alternative_impl(data, leafIndex):

tests/test_verifiable_log.py:146: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
/nix/store/s5f9zba6xbrjqxmmnjikwndqg9wk2xvr-python3.5-hypothesis-3.5.2/lib/python3.5/site-packages/hypothesis/core.py:524: in wrapped_test
    print_example=True, is_final=True
/nix/store/s5f9zba6xbrjqxmmnjikwndqg9wk2xvr-python3.5-hypothesis-3.5.2/lib/python3.5/site-packages/hypothesis/_settings.py:267: in __exit__
    return default_context_manager.__exit__(*args, **kwargs)
/nix/store/m8fvfdd3nhff2pn1ncppaz2rwmqpyw29-python3-3.5.2/lib/python3.5/contextlib.py:77: in __exit__
    self.gen.throw(type, value, traceback)
/nix/store/s5f9zba6xbrjqxmmnjikwndqg9wk2xvr-python3.5-hypothesis-3.5.2/lib/python3.5/site-packages/hypothesis/utils/dynamicvariables.py:43: in with_value
    yield
/nix/store/s5f9zba6xbrjqxmmnjikwndqg9wk2xvr-python3.5-hypothesis-3.5.2/lib/python3.5/site-packages/hypothesis/core.py:524: in wrapped_test
    print_example=True, is_final=True
!!! Recursion detected (same locals & position)
------------------------------------------------------------------------- Hypothesis --------------------------------------------------------------------------
Falsifying example: test_audit_proofs_are_valid_with_alternative_impl(data=[b'', b''], leafIndex=0)
________________________________________________ test_snapshotted_audit_proofs_are_valid_with_alternative_impl ________________________________________________

    @given(st.lists(st.binary(), max_size=99), st.integers(min_value=0, max_value=99), st.integers(min_value=0, max_value=99))
>   def test_snapshotted_audit_proofs_are_valid_with_alternative_impl(data, leafIndex, snapshotSize):

tests/test_verifiable_log.py:156: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
/nix/store/s5f9zba6xbrjqxmmnjikwndqg9wk2xvr-python3.5-hypothesis-3.5.2/lib/python3.5/site-packages/hypothesis/core.py:524: in wrapped_test
    print_example=True, is_final=True
/nix/store/s5f9zba6xbrjqxmmnjikwndqg9wk2xvr-python3.5-hypothesis-3.5.2/lib/python3.5/site-packages/hypothesis/_settings.py:267: in __exit__
    return default_context_manager.__exit__(*args, **kwargs)
/nix/store/m8fvfdd3nhff2pn1ncppaz2rwmqpyw29-python3-3.5.2/lib/python3.5/contextlib.py:77: in __exit__
    self.gen.throw(type, value, traceback)
/nix/store/s5f9zba6xbrjqxmmnjikwndqg9wk2xvr-python3.5-hypothesis-3.5.2/lib/python3.5/site-packages/hypothesis/utils/dynamicvariables.py:43: in with_value
    yield
/nix/store/s5f9zba6xbrjqxmmnjikwndqg9wk2xvr-python3.5-hypothesis-3.5.2/lib/python3.5/site-packages/hypothesis/core.py:524: in wrapped_test
    print_example=True, is_final=True
!!! Recursion detected (same locals & position)
------------------------------------------------------------------------- Hypothesis --------------------------------------------------------------------------
Falsifying example: test_snapshotted_audit_proofs_are_valid_with_alternative_impl(data=[b'', b'', b''], leafIndex=0, snapshotSize=2)
============================================================= 2 failed, 7 passed in 6.06 seconds ==============================================================