I get the above runtime message after I upgraded to Swift4.1 and Xcode 9.3. Before the upgrade I did not have this message in my console window.
Status ba
Update: not fixed in Xcode 9.4.1 (9F2000)
Update: not fixed in Xcode 10 (10A255)
Update: not fixed in Xcode 11 betas
I think you can safely ignore it. New versions of iOS/macOS sometimes contain informational debugging messages, and they generally get removed at the next release.