tool.drcacheoff.warmup-pthreads-windows-split failed with "Failed to map encoding file"

[derekbruening]

This happened on a master merge on aarch64-sve-precommit-128:

2026-04-01T21:53:35.1682277Z 308: CMake Error at /opt/actions-runner/_work/dynamorio/dynamorio/suite/tests/process_cmdline.cmake:109 (message):
2026-04-01T21:53:35.1682950Z 308:   *** postcmd failed (1): ERROR: failed to initialize analyzer: raw2trace
2026-04-01T21:53:35.1683433Z 308:   failed: Failed to parse module fileFailed to map encoding file
2026-04-01T21:53:35.1683773Z 308: 
2026-04-01T21:53:35.1683918Z 308:   ***
2026-04-01T21:53:35.1684071Z 308: 
2026-04-01T21:53:35.1684248Z 308: Call Stack (most recent call first):
2026-04-01T21:53:35.1684732Z 308:   /opt/actions-runner/_work/dynamorio/dynamorio/suite/tests/runmulti.cmake:60 (process_cmdline)
2026-04-01T21:53:35.1685208Z 308: 
2026-04-01T21:53:35.1685359Z 308: 
2026-04-01T21:53:35.1685767Z  71/131 Test #308: code_api|tool.drcacheoff.warmup-pthreads-windows-split ...........***Failed    0.44 sec