MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-05-09/tests/general'
/mnt/testing/run/build/mercury-srcdist-rotd-2023-05-09/stage2/scripts/mmc --generate-dependencies --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS     string_foldl_substring > string_foldl_substring.dep_err 2>&1
make[3]: *** [/tmp/mmake.L2ubw4:1616: string_foldl_substring.depend] Error 139
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-05-09/tests/general'
FAILED TEST general/string_foldl_substring in grade hlc.par.gc