Hi. I forgot one detail: > I tried with machines with 1 and 2 CPUs, and my experience is that the > build fails when using sbuild + schroot with the file backend, > regardless of number of CPUs, and the build succeeds when using > sbuild + unshare backend, also regardless of number of CPUs.
Note that this matches what we can see in the official buildds, namely, the build seems to work ok on release architectures, which switched to sbuild + unshare backend recently, but it sometimes fails on non-release architectures, which I guess have not switched yet. We can tell that a given build log was made with the unshare backend when there is a line like this: I: Unpacking /srv/chroot/sid_amd64.tar.gz to /srv/buildd/tmp.sbuild.ICtrcvR_c7... Thanks.
