test_controlled_reproducer_releases_its_socket_and_context (__main__.AckStartupFailureDiagnostic.test_controlled_reproducer_releases_its_socket_and_context) ... ok
test_failed_bind_is_reported_to_start_caller (__main__.AckStartupFailureDiagnostic.test_failed_bind_is_reported_to_start_caller) ... ok
test_failed_listener_does_not_claim_running (__main__.AckStartupFailureDiagnostic.test_failed_listener_does_not_claim_running) ... ok

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Ran 3 tests in 0.013s

OK
