[Debian-med-packaging] seqan3 is marked for autoremoval from testing

[Debian testing autoremoval watch]

seqan3 3.0.1+ds-10 is marked for autoremoval from testing on 2020-06-16

It (build-)depends on packages with these RC bugs:
959613: range-v3: FTBFS: unique.cpp:58:10: internal compiler error: in dependent_type_p, at cp/pt.c:25610