CRASH in histogram.offline test on Server2016

First seen on Appveyor: https://github.com/DynamoRIO/dynamorio/issues/4058#issuecomment-581161162

Details:

[00:13:53] 230/262 Test #231: code_api|tool.histogram.offline ..............................***Failed    1.34 sec
[00:13:53] Running cmd |C:/projects/dynamorio/build/build_debug-internal-32/bin32/drrun.exe;-s;180;-quiet;-debug;-use_dll;C:/projects/dynamorio/build/build_debug-internal-32/lib32/debug/dynamorio.dll;-exit0;-stderr_mask;0xC;-msgbox_mask;0;-dumpcore_mask;0x7d;-staged;-code_api;-t;drcachesim;-offline;-subdir_prefix;tool.histogram.offline;-trace_after_instrs;5K;-exit_after_tracing;50K;--;C:/projects/dynamorio/build/build_debug-internal-32/suite/tests/bin/client.winxfer.exe|
[00:13:53] Running postcmd |C:/projects/dynamorio/build/build_debug-internal-32/clients/bin32/drcachesim.exe;-indir;C:/projects/dynamorio/build/build_debug-internal-32/suite/tests/tool.histogram.offline.client.winxfer.exe.05676.5907.dir|
[00:13:53] CMake Error at C:/projects/dynamorio/suite/tests/runmulti.cmake:106 (message):
[00:13:53]   *** postcmd failed (Access violation): ***
[00:13:53] 
[00:13:53] Call Stack (most recent call first):
[00:13:53]   C:/projects/dynamorio/suite/tests/runmulti.cmake:118 (process_cmdline)

But it continues to fail on GA.