It doesn't build on PPC64. We had similar issues before in other projects and I'm currently trying to figure out how we solved it.

@asaurin, @chbrauner, @containersteam, @cyphar, @dcassany, @flavio_castelli, @jordimassaguerpla, @kiall, @m_meister, @mjura, @mssola, @sgrunert, @thipp, @vzepedamas: review reminder