MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-05-12/tests/typeclasses'
/mnt/testing/run/build/mercury-srcdist-rotd-2023-05-12/stage2/scripts/mmc --generate-dependencies --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS     use_abstract_instance > use_abstract_instance.dep_err 2>&1
make[3]: *** [/tmp/mmake.ySXAxz:1786: use_abstract_instance.depend] Error 139
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-05-12/tests/typeclasses'
FAILED TEST typeclasses/use_abstract_instance in grade hlc.par.gc