make: Entering directory '/tmp/dwq.0.41108498971062135/c9f0871bd75f675f64c4fe11f3914f9d/tests/sys/malloc_monitor'
/tmp/dwq.0.41108498971062135/c9f0871bd75f675f64c4fe11f3914f9d/build/tests_malloc_monitor.elf  tap0 
RIOT native interrupts/signals initialized.
TZ not set, setting UTC
RIOT native64 board initialized.
RIOT native hardware initialization complete.

main(): This is RIOT! (Version: buildtest)
malloc_monitor test
.
tests.test_malloc_free (main.c 49) exp 1 was 0
.
tests.test_calloc (main.c 91) exp 1 was 0
.
tests.test_realloc (main.c 134) exp 1 was 0
.
tests.test_free_NULL (main.c 179) exp 1 was 0

run 4 failures 4
{ "threads": [{ "name": "idle", "stack_size": 16384, "stack_used": 1080 }]}
{ "threads": [{ "name": "main", "stack_size": 20480, "stack_used": 3912 }]}
Unexpected end of file in expect script at "child.expect(r'OK \((\d+) tests\)', timeout=timeout)" (dist/pythonlibs/testrunner/__init__.py:57)

Process already stopped
make: Leaving directory '/tmp/dwq.0.41108498971062135/c9f0871bd75f675f64c4fe11f3914f9d/tests/sys/malloc_monitor'
make: *** [/tmp/dwq.0.41108498971062135/c9f0871bd75f675f64c4fe11f3914f9d/makefiles/tests/tests.inc.mk:32: test] Error 1