Warning running tests toolz.compatibility

[w2vy]

`tom@rnode:~/RChain/pyrchain$ python -m pytest rchain/tests
=============================================== test session starts ===============================================
platform linux -- Python 3.8.6, pytest-6.2.3, py-1.10.0, pluggy-0.13.1
rootdir: /home/tom/RChain/pyrchain
collected 51 items

rchain/tests/test_certificate.py .......... [ 19%]
rchain/tests/test_client.py ......... [ 37%]
rchain/tests/test_crypto.py ............................. [ 94%]
rchain/tests/test_from_pb.py ... [100%]

================================================ warnings summary =================================================
../../.local/lib/python3.8/site-packages/cytoolz/compatibility.py:2
/home/tom/.local/lib/python3.8/site-packages/cytoolz/compatibility.py:2: DeprecationWarning: The toolz.compatibility module is no longer needed in Python 3 and has been deprecated. Please import these utilities directly from the standard library. This module will be removed in a future release.
warnings.warn("The toolz.compatibility module is no longer "

-- Docs: https://docs.pytest.org/en/stable/warnings.html
========================================== 51 passed, 1 warning in 1.04s ==========================================
tom@rnode:~/RChain/pyrchain$

`
Runnung Ubuntu 20.10
Python 3.8.6