In:

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  guix c30fa17
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: c30fa177f3717094e72c01ebba330b638a5e6e65
--8<---------------cut here---------------end--------------->8---

... the build of python-seaborn fails with the
following test-cases failing:

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seaborn/tests/test_relational.py::TestScatterPlotter::test_scatterplot_vs_relplot[long_semantics2]
seaborn/tests/test_relational.py::TestScatterPlotter::test_scatterplot_vs_relplot[long_semantics2]
  /tmp/guix-build-python-seaborn-0.11.2.drv-0/seaborn-0.11.2/seaborn/relational.py:608: MatplotlibDeprecationWarning: Support for passing numbers through unit converters is deprecated since 3.5 and support will be removed two minor releases later; use Axis.convert_units instead.
    scout = ax.scatter(scout_x, scout_y, **kws)

-- Docs: https://docs.pytest.org/en/stable/warnings.html
=========================== short test summary info ============================FAILED seaborn/tests/test_categorical.py::TestBoxPlotter::test_axes_data - As...FAILED seaborn/tests/test_categorical.py::TestBoxPlotter::test_draw_missing_boxes
FAILED seaborn/tests/test_categorical.py::TestBoxPlotter::test_missing_data
FAILED seaborn/tests/test_categorical.py::TestCatPlot::test_plot_elements - A...FAILED seaborn/tests/test_distributions.py::TestKDEPlotUnivariate::test_legend
FAILED seaborn/tests/test_distributions.py::TestKDEPlotBivariate::test_fill_artists
FAILED seaborn/tests/test_distributions.py::TestKDEPlotBivariate::test_common_norm
FAILED seaborn/tests/test_distributions.py::TestKDEPlotBivariate::test_log_scaleFAILED seaborn/tests/test_distributions.py::TestKDEPlotBivariate::test_bandwidthFAILED seaborn/tests/test_distributions.py::TestKDEPlotBivariate::test_weights
FAILED seaborn/tests/test_distributions.py::TestKDEPlotBivariate::test_hue_ignores_cmap
FAILED seaborn/tests/test_distributions.py::TestKDEPlotBivariate::test_contour_line_colors
FAILED seaborn/tests/test_distributions.py::TestKDEPlotBivariate::test_levels_and_thresh
FAILED seaborn/tests/test_distributions.py::TestDisPlot::test_with_rug[kwargs0]
FAILED seaborn/tests/test_distributions.py::TestDisPlot::test_with_rug[kwargs1]
FAILED seaborn/tests/test_distributions.py::TestDisPlot::test_with_rug[kwargs2]
FAILED seaborn/tests/test_distributions.py::TestDisPlot::test_bivariate_kde_norm==== 17 failed, 1003 passed, 28 skipped, 195 warnings in 289.80s (0:04:49) =====error: in phase 'check': uncaught exception:
%exception #<&invoke-error program: "pytest" arguments: ("seaborn") exit-status: 1 term-signal: #f stop-signal: #f> 
phase `check' failed after 293.5 seconds
command "pytest" "seaborn" failed with status 1
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Find attached the full build failure