 qtbase and most of the rest on the transition is a valid candidate. a few things entangled via proj and re2
 @RikMills [qtbase and most of the rest on the transition is a valid candidate. a few things …], I see you retried http://autopkgtest.ubuntu.com/packages/r/r-cran-lwgeom/groovy/s390x but it failed again :(
 @mitya57 [I see you retried http://autopkgtest.ubuntu.com/packages/r/r-cran-lwgeom/groovy/ …], I just tried it for the hell of it.
 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=961211