Core was generated by `python -X dev -m pytest --verbose --color=yes --durations=10 --showlocals --cov'. Program terminated with signal SIGABRT, Aborted. #0 __pthread_kill_implementation (no_tid=0, signo=6, threadid=140335707584064) at ./nptl/pthread_kill.c:44 [Current thread is 1 (Thread 0x7fa273fff640 (LWP 2491))] #0 __pthread_kill_implementation (no_tid=0, signo=6, threadid=140335707584064) at ./nptl/pthread_kill.c:44 #1 __pthread_kill_internal (signo=6, threadid=140335707584064) at ./nptl/pthread_kill.c:78 #2 __GI___pthread_kill (threadid=140335707584064, signo=signo@entry=6) at ./nptl/pthread_kill.c:89 #3 0x00007fa27b642476 in __GI_raise (sig=6) at ../sysdeps/posix/raise.c:26 #4 0x00007fa27be3f0f0 in faulthandler_fatal_error (signum=6) at ./Modules/faulthandler.c:338 #5 <signal handler called> #6 __pthread_kill_implementation (no_tid=0, signo=6, threadid=140335707584064) at ./nptl/pthread_kill.c:44 #7 __pthread_kill_internal (signo=6, threadid=140335707584064) at ./nptl/pthread_kill.c:78 #8 __GI___pthread_kill (threadid=140335707584064, signo=signo@entry=6) at ./nptl/pthread_kill.c:89 #9 0x00007fa27b642476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26 #10 0x00007fa27b6287f3 in __GI_abort () at ./stdlib/abort.c:79 #11 0x00007fa27b62871b in __assert_fail_base (fmt=0x7fa27b7dd130 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x7fa27bf0b730 "co->_co_cached->_co_code == NULL", file=0x7fa27bf0b174 "Objects/codeobject.c", line=1664, function=<optimized out>) at ./assert/assert.c:92 #12 0x00007fa27b639e96 in __GI___assert_fail (assertion=0x7fa27bf0b730 "co->_co_cached->_co_code == NULL", file=0x7fa27bf0b174 "Objects/codeobject.c", line=1664, function=0x7fa27bf0c0e0 <__PRETTY_FUNCTION__.13> "_PyCode_GetCode") at ./assert/assert.c:101 #13 0x00007fa27bb7f165 in _PyCode_GetCode (co=0x200023271d0) at Objects/codeobject.c:1664 #14 0x00007fa27bb7f1a5 in PyCode_GetCode (co=0x200023271d0) at Objects/codeobject.c:1672 #15 0x00007fa27b1b2547 in CTracer_handle_call (frame=0x20026051010, self=0x20026070110) at coverage/ctracer/tracer.c:557 #16 CTracer_trace (self=0x20026070110, frame=0x20026051010, what=0, arg_unused=<optimized out>) at coverage/ctracer/tracer.c:844 #17 0x00007fa27bdd738d in call_trace_func (self=0x20002152ea0, arg=0x7fa27c14fc60 <_Py_NoneStruct>) at Python/legacy_tracing.c:189 #18 0x00007fa27bdd75fa in sys_trace_start (self=0x20002152ea0, args=0x7fa273ffcdf8, nargsf=9223372036854775810, kwnames=0x0) at Python/legacy_tracing.c:229 #19 0x00007fa27bdcc0a5 in _PyObject_VectorcallTstate (tstate=0x5620713a56e0, callable=0x20002152ea0, args=0x7fa273ffcdf8, nargsf=9223372036854775810, kwnames=0x0) at ./Include/internal/pycore_call.h:168 #20 0x00007fa27bdce182 in call_one_instrument (interp=0x7fa27c1975c0 <_PyRuntime+128640>, tstate=0x5620713a56e0, args=0x7fa273ffcdf8, nargsf=9223372036854775810, tool=7 '\a', event=0) at Python/instrumentation.c:907 #21 0x00007fa27bdcea63 in call_instrumentation_vector (tstate=0x5620713a56e0, event=0, frame=0x7fa27b0d8350, instr=0x200023272aa, nargs=2, args=0x7fa273ffcdf0) at Python/instrumentation.c:1095 #22 0x00007fa27bdcec5d in _Py_call_instrumentation (tstate=0x5620713a56e0, event=0, frame=0x7fa27b0d8350, instr=0x200023272aa) at Python/instrumentation.c:1132 #23 0x00007fa27bd46096 in _PyEval_EvalFrameDefault (tstate=0x5620713a56e0, frame=0x7fa27b0d8350, throwflag=0) at Python/generated_cases.c.h:3474 #24 0x00007fa27bd32d31 in _PyEval_EvalFrame (tstate=0x5620713a56e0, frame=0x7fa27b0d8020, throwflag=0) at ./Include/internal/pycore_ceval.h:119 #25 0x00007fa27bd56877 in _PyEval_Vector (tstate=0x5620713a56e0, func=0x200012a69d0, locals=0x0, args=0x7fa273ffec40, argcount=1, kwnames=0x0) at Python/ceval.c:1806 #26 0x00007fa27bb7271e in _PyFunction_Vectorcall (func=0x200012a69d0, stack=0x7fa273ffec40, nargsf=1, kwnames=0x0) at Objects/call.c:413 #27 0x00007fa27bb765f3 in _PyObject_VectorcallTstate (tstate=0x5620713a56e0, callable=0x200012a69d0, args=0x7fa273ffec40, nargsf=1, kwnames=0x0) at ./Include/internal/pycore_call.h:168 #28 0x00007fa27bb76c80 in method_vectorcall (method=0x200248b8890, args=0x7fa27c197548 <_PyRuntime+128520>, nargsf=0, kwnames=0x0) at Objects/classobject.c:70 #29 0x00007fa27bb7208f in _PyVectorcall_Call (tstate=0x5620713a56e0, func=0x7fa27bb76a66 <method_vectorcall>, callable=0x200248b8890, tuple=0x7fa27c197520 <_PyRuntime+128480>, kwargs=0x0) at Objects/call.c:273 #30 0x00007fa27bb7243c in _PyObject_Call (tstate=0x5620713a56e0, callable=0x200248b8890, args=0x7fa27c197520 <_PyRuntime+128480>, kwargs=0x0) at Objects/call.c:348 #31 0x00007fa27bb72517 in PyObject_Call (callable=0x200248b8890, args=0x7fa27c197520 <_PyRuntime+128480>, kwargs=0x0) at Objects/call.c:373 #32 0x00007fa27bec8297 in thread_run (boot_raw=0x5620712f0d80) at ./Modules/_threadmodule.c:337 #33 0x00007fa27be210f7 in pythread_wrapper (arg=0x5620712f0f30) at Python/thread_pthread.h:243 #34 0x00007fa27b694ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442 #35 0x00007fa27b726850 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81