tool.drcachesim.delay-global failed on AArch64

tool.drcachesim.delay-global failed on AArch64 on commit 06db371b in PR #5157.

It seems that the test died midway iteration 2?

54/54 Test #175: code_api|tool.drcachesim.delay-global ...........................***Failed  Required regular expression not found. Regex=[^Hit delay threshold: enabling tracing.
Hit -max_global_trace_refs: disabling tracing.
.*
     Total Number Of iterations   :  3
    ...................................................................
---- <application exited with code 0> ----
Basic counts tool results:
Total counts:
.*
           1 total threads
.*
$
] 90.00 sec
Hit delay threshold: enabling tracing.
Hit -max_global_trace_refs: disabling tracing.

    -------------------------------------------------------------------
     Performance for solving AX=B Linear Equation using Jacobi method
     Running on DynamoRIO
     Client version (null)
    ...................................................................

     Matrix Size :  64
     Threads     :  4


     Started iteration 1 of the computation...

     Finished computing current solution distance in mode 0.
     Mode changed to 0.

     Started iteration 2 of the computation...


96% tests passed, 2 tests failed out of 54

http://139.178.84.19:8080/job/DynamoRIO-AArch64-Precommit/806/consoleFull