supercollider-sc3-plugins is marked for autoremoval from testing

[Debian testing autoremoval watch]

supercollider-sc3-plugins 3.9.1~repack-1 is marked for autoremoval from testing 
on 2019-01-08

It (build-)depends on packages with these RC bugs:
914640: supercollider: supercollider FTBFS on amd64/i386 with boost 1.67