[Pkg-matrix-maintainers] matrix-mirage is marked for autoremoval from testing

[Debian testing autoremoval watch]

matrix-mirage 0.6.4~dfsg+~hsluv1.0.0-4 is marked for autoremoval from testing on 2021-05-21

It (build-)depends on packages with these RC bugs:
986525: yarl: FTBFS: dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p 3.9 returned exit code 13
 https://bugs.debian.org/986525



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