Intermittent test failure in 'ExecutorPoolEpEngineTest/1.PoolThreadsAreRegisteredWithPhosphor'

Note: Google Test filter = ExecutorPoolEpEngineTest/1.*

[==========] Running 4 tests from 1 test suite.

[----------] Global test environment set-up.

[----------] 4 tests from ExecutorPoolEpEngineTest/1, where TypeParam = FollyExecutorPool

[ RUN      ] ExecutorPoolEpEngineTest/1.cancel_can_schedule

[       OK ] ExecutorPoolEpEngineTest/1.cancel_can_schedule (15 ms)

[ RUN      ] ExecutorPoolEpEngineTest/1.MemoryTracking_Run

[       OK ] ExecutorPoolEpEngineTest/1.MemoryTracking_Run (9 ms)

[ RUN      ] ExecutorPoolEpEngineTest/1.TaskStats_MemAccounting

[       OK ] ExecutorPoolEpEngineTest/1.TaskStats_MemAccounting (11 ms)

[ RUN      ] ExecutorPoolEpEngineTest/1.PoolThreadsAreRegisteredWithPhosphor

pure virtual method called

terminate called without an active exception