I tried to run MCreator and it sorta did this when I started a world in client:
AL lib: (EE) alc_cleanup: 1 device not closed
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':runClient'.
> Process 'command 'C:\Pylo\MCreator\MCreator 1.5.7 [1.8]\jdk\bin\java.exe'' finished with non-zero exit value -1
No idea what it means, but the 'device not closed' part makes me wonder. I didn't have minecraft open, so what could it be?