Yes I do see this. I'm running on simulator.
Can I really trust that you have an extensive test suite where you really try to stress test your XCTest/XCUITest frameworks? If you don't have that, please add such suites immediately. To me the test frameworks seem to be instable. They might work most of the times for 5 TCs running for one second in a suite, but is it really 100% stable when you add 100 TCs in a suite? Can I trust that each TC will return the same output every time without errors like the one above? Can I trust that I can add a 10 minute graphical TC in XCUITest that terminates with the same output every time without test framework problems? Can I add 50 10 minute graphical TCs that runs over night? Etc.
I try to implement such test suites for my app, to guarantee the quality of my software. I have hard times to do that. I'm currently running 1 (one) TC for ~1 minute, and that TC is passing 80% of the runs. Now it terminated with the error above. Don't know what will be the reason next time...
Please, please do extensive tests of the test frameworks on both devices and simulators.