… while calling the 'throw' builtin
         at /private/var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/builder/ofborg-core/lib/asserts.nix:50:34:
           49|   # TODO(Profpatsch): add tests that check stderr
           50|   assertMsg = pred: msg: pred || builtins.throw msg;
             |                                  ^
           51|

       error: hibernate-systemd-stage-1 is not a derivation