MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2024-08-15/tests/typeclasses'
/mnt/testing/run/build/mercury-srcdist-rotd-2024-08-15/stage2/scripts/mmc --generate-dependencies --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS     arbitrary_constraint_class > arbitrary_constraint_class.dep_err 2>&1
make[3]: *** [/tmp/mmake.XXEI2c:1032: arbitrary_constraint_class.depend] Error 139
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2024-08-15/tests/typeclasses'
FAILED TEST typeclasses/arbitrary_constraint_class in grade hlc.par.gc