bug#36675: Same build failure with kodi 18.3

[Josh Holland]

Hi,

I just had the same error with Kodi 18.3
(z1zswg7wfz4lb6zmyzsns2hpkbw5scir-kodi-18.3.drv), although only with the
TestMassEvent.General test; .Polling passed fine.  This kind of makes
sense with it being some sort of race condition on the mutex(?).

----------8<--------------
438/521 Test #438: TestMassEvent.General 
....................................................Child aborted***Exception:  
 1.62 sec
Note: Google Test filter = TestMassEvent.General
[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from TestMassEvent
[ RUN      ] TestMassEvent.General
[       OK ] TestMassEvent.General (107 ms)
[----------] 1 test from TestMassEvent (107 ms total)

[----------] Global test environment tear-down
[==========] 1 test from 1 test case ran. (162 ms total)
[  PASSED  ] 1 test.
Clean shutdown of TestGlobalPattern1
kodi-test: ../nptl/pthread_mutex_lock.c:434: __pthread_mutex_lock_full: 
Assertion `robust || (oldval & FUTEX_OWNER_DIED) == 0' failed.

        Start 439: TestMassEvent.Polling
439/521 Test #439: TestMassEvent.Polling 
....................................................   Passed    0.23 sec
----------8<--------------

I had a look in dmesg as suggested by Amirouche, and this appears to be
the only relevant line:

----------8<--------------
[ 1540.045259] audit: type=1701 audit(1564480138.686:163): auid=4294967295 
uid=977 gid=977 ses=4294967295 pid=11783 comm="DumbThread" 
exe="/tmp/guix-build-kodi-18.3.drv-0/build/kodi-test" sig=6 res=1
----------8<--------------


--
Josh Holland