rlib/test/test_rutf8.py::test_codepoint_position_at_index

@given(strategies.text(min_size=63))
>   @example(u'x' * 64 * 5)
    @example(u'x' * (64 * 5 - 1))
    def test_codepoint_position_at_index(u):
E   FailedHealthCheck: Data generation is extremely slow: Only produced 8 valid examples in 1.01 seconds (0 invalid ones and 0 exceeded maximum size). Try decreasing size of the data you're generating (with e.g.max_size or max_leaves parameters).
E   See https://hypothesis.readthedocs.io/en/latest/healthchecks.html for more information about this. If you want to disable just this health check, add HealthCheck.too_slow to the suppress_health_check settings for this test.

rlib/test/test_rutf8.py:127: FailedHealthCheck
---------- Hypothesis ----------
You can add @seed(130536832705345283520899546671630092775) to this test or run pytest with --hypothesis-seed=130536832705345283520899546671630092775 to reproduce this failure.

builder: rpython-linux-x86-32 build #874+

test: rlib/test/test_rutf8.py::test_codepoint_position_at_index