astro/stellarium build is now failing on i386: FAILED: translations/stellarium-planetary-features/af.qm cd /pobj/stellarium-0.20.4/build-i386/po/stellarium-planetary-features && /usr/local/lib/qt5/bin/lconvert -i /pobj/stellarium-0.20.4/stellarium-0.20.4/po/stellarium-planetary-features/af.po -o /pobj/stellarium-0.20.4/build-i386/translations/stellarium-planetary-features/af.qm terminating with uncaught exception of type std::bad_alloc: std::bad_alloc Abort trap (core dumped) ninja: build stopped: subcommand failed.
Built OK on 20210118 (post libc++ update), failed on 20210121, so I think this must have been following the Qt update.