I broke it in commit 4da2dda2aa. It wasn't
flaky or anything: it was plain broken and would never pass. That
indicates no node in the CI has an IPv4 link-local address (and
apparently neither did I at the time).
Change-Id: Ifb5969bf206e4cd7b14efffd14fb62176546916e
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>