Comment # 1 on bug 939105 from C�dric Bosdonnat

I don't really see why that one would be for me. After some investigations, I
found out that virt-builder is directly using qemu to run his VM. Olaf, Bruce,
would you have any idea?

I'll add a more detailed log, with
    export LIBGUESTFS_DEBUG=1
    export LIBGUESTFS_TRACE=1