Yes, it seems it was the ccache - I had enabled the 'ccache_failure_remove' flag last night and run a build, which failed, but the builds after that went green.
Regards On Tue, 29 Mar 2022 at 06:41, Andres Freund <and...@anarazel.de> wrote: > On 2022-03-28 19:25:51 -0400, Tom Lane wrote: > > ... even more baffling: jabiru went green after the IS JSON patch. > > Broken ccache contents somehow? >