I0821 20:30:27.194039199   11950 alarm_test.c:45]            test_alarm
E0821 20:30:32.241409092   11950 alarm_test.c:38]            assertion failed: ev.type == GRPC_QUEUE_SHUTDOWN



*******************************
Caught signal SIGABRT
==================
WARNING: ThreadSanitizer: signal-unsafe call inside of a signal (pid=11950)
    #0 malloc /llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:595 (alarm_test+0x000000442cc8)
    #1 <null> <null> (ld-linux-x86-64.so.2+0x00000000c87d)
    #2 crash_handler /var/local/git/grpc/test/core/util/test_config.c:245:13 (alarm_test+0x000000895f78)
    #3 __tsan::CallUserSignalHandler(__tsan::ThreadState*, bool, bool, bool, int, my_siginfo_t*, void*) /llvm/projects/compiler-rt/lib/tsan/rtl/tsan_interceptors.cc:1951 (alarm_test+0x000000423a46)
    #4 shutdown_and_destroy /var/local/git/grpc/test/core/surface/alarm_test.c:38:178 (alarm_test+0x0000004afc01)
    #5 test_alarm /var/local/git/grpc/test/core/surface/alarm_test.c:91:3 (alarm_test+0x0000004afae3)
    #6 main /var/local/git/grpc/test/core/surface/alarm_test.c:97:3 (alarm_test+0x0000004af5d5)

SUMMARY: ThreadSanitizer: signal-unsafe call inside of a signal (/lib64/ld-linux-x86-64.so.2+0xc87d) 
==================
Command exited with non-zero status 66
real 5.52
user 0.00
sys 0.09