This error comes up as part of the Upstream CI, see the link below. Afaiu the failure comes from the:

pytest.param(lambda x: x.mean(), marks=numpy_120_xfail),

case of the

And to be clear this case fails on the upstream version but no the latest release of sparse. We might need to track down the change in sparse and potentially fix that up or add xfail marker.

Environment:

https://github.com/dask/dask/runs/1674320752 (example, but the previous builds also fail for this case).