openvdb built successfully on s390x but caused such a large build log
that it could not be sent to the collector (because the transport is
mail and it exceeded the mail size limit even when the log was
compressed). I put it onto [0]. As far as I checked it mainly consists
out of a single test failing and spamming the log continuously. The test
failure was subsequently ignored.

The failures seem to be precision failures like these:

Kind regards
Philipp Kern

[0]
https://people.debian.org/~pkern/openvdb_10.0.1-2.2_s390x-2025-01-09T03:19:51Z.gz