Print output of hung test after killing it

[locker]

If a test hangs, the output of test-run will look like this:

No output during 10 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.
No output during 20 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.
No output during 30 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.
No output during 40 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.
No output during 50 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.
No output during 60 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.
No output during 70 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.
No output during 80 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.
No output during 90 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.
No output during 100 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.
No output during 110 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.
No output during 120 seconds. List of workers not reporting the status: [1]; Will abort after 120 seconds without output.

[Main process] No output from workers. It seems that we hang. Send SIGKILL to workers; exiting...
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Count of didn't processed tasks: 1

That is, looking at the output it is impossible to say what happened. It would be great if test-run printed the output of hung tests (diff or tap result).