Failure in TestRecvDisembargo

[zenhack]

From https://github.com/capnproto/go-capnproto2/actions/runs/3662127729/jobs/6190989469#step:5:1530

 === RUN   TestRecvDisembargo
Error:     level0_test.go:2085: conn error: rpc: incoming disembargo: answer ID 55 has not sent return
Error:     level1_test.go:767: don't know how to handle abort; skipping
Error:     level1_test.go:674: recvMessage(ctx, p2): transport: stream transport: receive: io: read/write on closed pipe
--- FAIL: TestRecvDisembargo (0.17s)