[Magma] Memcached crashed in std::execute_native_thread_routine (__p=0x7f825c2deee0)

(gdb) bt full

#0  0x00007f82605e9337 in raise () from /lib64/libc.so.6

No symbol table info available.

#1  0x00007f82605eaa28 in abort () from /lib64/libc.so.6

No symbol table info available.

#2  0x00007f8261147195 in __gnu_cxx::__verbose_terminate_handler () at /tmp/deploy/gcc-7.3.0/libstdc++-v3/libsupc++/vterminate.cc:95

        terminating = false

        t = <optimized out>

#3  0x0000000000558162 in backtrace_terminate_handler () at /tmp/workspace/couchbase-server-unix/kv_engine/utilities/terminate_handler.cc:93

No locals.

#4  0x00007f8261144f86 in __cxxabiv1::__terminate (handler=<optimized out>) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/libsupc++/eh_terminate.cc:47

No locals.

#5  0x00007f8261144fd1 in std::terminate () at /tmp/deploy/gcc-7.3.0/libstdc++-v3/libsupc++/eh_terminate.cc:57

No locals.

#6  0x00007f826116fdfe in std::execute_native_thread_routine (__p=0x7f825c2deee0) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:91

        __t = {_M_t = {

            _M_t = {<std::_Tuple_impl<0, std::thread::_State*, std::default_delete<std::thread::_State> >> = {<std::_Tuple_impl<1, std::default_delete<std::thread::_State> >> = {<std::_Head_base<1, std::default_delete<std::thread::_State>, true>> = {<std::default_delete<std::thread::_State>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, std::thread::_State*, false>> = {

                  _M_head_impl = 0x7f825c2deee0}, <No data fields>}, <No data fields>}}}

#7  0x00007f8260988e65 in start_thread () from /lib64/libpthread.so.0

No symbol table info available.

#8  0x00007f82606b188d in clone () from /lib64/libc.so.6

No symbol table info available.

(gdb) f 6

#6  0x00007f826116fdfe in std::execute_native_thread_routine (__p=0x7f825c2deee0) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:91

91	/tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc: No such file or directory.

guides/gradlew --refresh-dependencies testrunner -P jython=/opt/jython/bin/jython -P 'args=-i /tmp/testexec.31507.ini bucket_storage=magma,get-cbcollect-info=True,bucket_eviction_policy=fullEviction,randomize_value=True,rerun=false,infra_log_level=debug,log_level=debug,get-cbcollect-info=True,infra_log_level=critical,log_level=error,upgrade_version=7.0.0-4678 -t bucket_collections.collections_rebalance.CollectionsRebalance.test_data_load_collections_with_rebalance_in,nodes_init=3,nodes_in=2,bucket_spec=magma_templates.buckets_all_membase_for_rebalance_tests,data_load_stage=before,GROUP=P0_rebalance'