Test failure in "test reader thread starvation during warmup due to low reader threads"

Running [0157/0158]: test reader thread starvation during warmup due to low reader threads...WARNING: Found duplicate entry for "dbname"

WARNING: Found duplicate entry for "dbname"

/home/couchbase/jenkins/workspace/unit-simple-test/kv_engine/engines/ep/tests/ep_testsuite.cc:8319 Test failed: `' (Expected `complete' to not equal `complete' - Slow bucket completed before the fast bucket)

2021-08-19T18:56:33.414906+00:00 CRITICAL *** Fatal error encountered during exception handling ***

2021-08-19T18:56:33.414946+00:00 CRITICAL Caught unhandled std::exception-derived exception. what(): GSL: Precondition failure at /home/couchbase/jenkins/workspace/unit-simple-test/kv_engine/engines/ep/src/folly_executorpool.cc:100

2021-08-19T18:56:33.415276+00:00 CRITICAL Call stack:     #0  /home/couchbase/jenkins/workspace/unit-simple-test/server_build/kv_engine/ep_testsuite() [0x400000+0x5c51fc]

    #1  /home/couchbase/jenkins/workspace/unit-simple-test/server_build/kv_engine/ep_testsuite() [0x400000+0x1b53a0]

    #2  /home/couchbase/jenkins/workspace/unit-simple-test/server_build/kv_engine/ep_testsuite() [0x400000+0x1b5499]

    #3  /opt/gcc-10.2.0/lib64/libstdc++.so.6() [0x7f30cc5db000+0xa48f6]

    #4  /opt/gcc-10.2.0/lib64/libstdc++.so.6() [0x7f30cc5db000+0xa39d9]

    #5  /opt/gcc-10.2.0/lib64/libstdc++.so.6(__gxx_personality_v0+0x271) [0x7f30cc5db000+0xa4311]

    #6  /opt/gcc-10.2.0/lib64/libgcc_s.so.1() [0x7f30cc0c1000+0xfebf]

    #7  /opt/gcc-10.2.0/lib64/libgcc_s.so.1(_Unwind_RaiseException+0x331) [0x7f30cc0c1000+0x10541]

    #8  /opt/gcc-10.2.0/lib64/libstdc++.so.6(__cxa_throw+0x37) [0x7f30cc5db000+0xa4be7]

    #9  /home/couchbase/jenkins/workspace/unit-simple-test/server_build/kv_engine/ep_testsuite() [0x400000+0x576eb]

    #10 /home/couchbase/jenkins/workspace/unit-simple-test/server_build/kv_engine/ep_testsuite() [0x400000+0x21e9e9]

    #11 /home/couchbase/jenkins/workspace/unit-simple-test/server_build/kv_engine/ep_testsuite() [0x400000+0x21908e]

    #12 /home/couchbase/jenkins/workspace/unit-simple-test/server_build/kv_engine/ep_testsuite(_Z17destroy_ep_enginev+0xb) [0x400000+0x1d9c5b]

    #13 /home/couchbase/jenkins/workspace/unit-simple-test/server_build/kv_engine/ep_testsuite() [0x400000+0xe0e6c]

    #14 /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f30cbcf3000+0x22555]

    #15 /home/couchbase/jenkins/workspace/unit-simple-test/server_build/kv_engine/ep_testsuite() [0x400000+0x100d14]

terminate called after throwing an instance of 'gsl::fail_fast'

  what():  GSL: Precondition failure at /home/couchbase/jenkins/workspace/unit-simple-test/kv_engine/engines/ep/src/folly_executorpool.cc:100

/usr/bin/timeout: the monitored command dumped core