Treat Deprecation/Future warnings as errors

[pentschev]

This will allow us to know about and resolve Dask deprecation cycles more quickly.

Fixes #666

[jrbourbeau]

Thanks @pentschev!

FWIW, to your point in #666 (comment), it should be possible to only raise on warnings which are coming from specific libraries (here's how we target specific librarires like numpy and pandas over in dask)

[codecov-commenter]

Codecov Report

Merging #672 (e347b0f) into branch-21.08 (79bc44e) will increase coverage by 27.47%.
The diff coverage is 100.00%.

❗ Current head e347b0f differs from pull request most recent head 47bec38. Consider uploading reports for the commit 47bec38 to get more accurate results

@@                Coverage Diff                @@
##           branch-21.08     #672       +/-   ##
=================================================
+ Coverage         60.19%   87.66%   +27.47%     
=================================================
  Files                21       15        -6     
  Lines              2605     1646      -959     
=================================================
- Hits               1568     1443      -125     
+ Misses             1037      203      -834     

Impacted Files	Coverage Δ
dask_cuda/cli/dask_cuda_worker.py	95.71% <100.00%> (+0.06%)	⬆️
dask_cuda/cuda_worker.py	78.31% <100.00%> (ø)
dask_cuda/utils.py	86.32% <100.00%> (-1.42%)	⬇️
dask_cuda/benchmarks/local_cupy_map_overlap.py
dask_cuda/benchmarks/local_cudf_merge.py
dask_cuda/_version.py
dask_cuda/benchmarks/local_cupy.py
dask_cuda/benchmarks/utils.py
dask_cuda/benchmarks/local_cudf_shuffle.py

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[pentschev]

FWIW, to your point in #666 (comment), it should be possible to only raise on warnings which are coming from specific libraries (here's how we target specific librarires like numpy and pandas over in dask)

Aha! That's good to know, thanks @jrbourbeau . I'll try it as is for now to see how it behaves, but if that becomes too demanding I'll limit it to Dask/Distributed only.

[quasiben]

Thanks @pentschev !

[quasiben]

@gpucibot merge