I said: > the official buildds use sbuild, Just in case anybody want to argue that "this package does not need to build in the official buildds because it's Arch: all".
Well, yes, it needs to be buildable in the "Arch: all" autobuilder as well. That's precisely what release goal in Bug #830997 is about. We should be able to upload every package in stretch in source only form, and it should work. Thanks.