The 'etcd' package has what appears to be a flaky FTBFS in the self-tests. https://ci.debian.net/packages/e/etcd/testing/s390x/76530700/#L20178 This is blocking testing migration for golang-golang-x-time now. Builds are fine on amd64 and other non-s390x archs, so probably a flaky test. 714s === RUN TestPeriodicHourly 714s periodic_test.go:53: len(actions) = 0, expected >= 1 714s {"level":"info","msg":"starting auto periodic compaction","revision":1,"compact-period":"2h0m0s"} 714s --- FAIL: TestPeriodicHourly (0.23s) /Simon