This bug was fixed in the package capnproto - 0.7.0-6
--------------- capnproto (0.7.0-6) focal; urgency=medium
* import ce4dd5a1, fixing build issue on s390x LP: #1870055
-- Michał Sawicz <email address hidden> Wed, 01 Apr 2020 16:12:03 +0200
This bug was fixed in the package capnproto - 0.7.0-6
---------------
capnproto (0.7.0-6) focal; urgency=medium
* import ce4dd5a1, fixing build issue on s390x LP: #1870055
-- Michał Sawicz <email address hidden> Wed, 01 Apr 2020 16:12:03 +0200