MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2024-02-17/tests/valid'
/mnt/testing/run/build/mercury-srcdist-rotd-2024-02-17/stage2/scripts/mmc --generate-dependencies --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS  --halt-at-warn   some_singleton > some_singleton.dep_err 2>&1
make[3]: *** [/tmp/mmake.zGLAYv:1767: some_singleton.depend] Error 139
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2024-02-17/tests/valid'
FAILED TEST valid/some_singleton in grade hlc.par.gc