MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-10-07/tests/valid'
/mnt/testing/run/build/mercury-srcdist-rotd-2023-10-07/stage2/scripts/mmc --generate-dependencies --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS  --prop-mode-constraints   mc_graph > mc_graph.dep_err 2>&1
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-10-07/tests/valid'
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-10-07/tests/valid'
/mnt/testing/run/build/mercury-srcdist-rotd-2023-10-07/stage2/scripts/mmc --make-interface --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS  --prop-mode-constraints   mc_graph
make[3]: *** [/tmp/mmake.ZitzBH:2883: mc_graph.date] Segmentation fault
make[3]: Target 'mc_graph.runtest' not remade because of errors.
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-10-07/tests/valid'