MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2024-02-20/tests/purity'
/mnt/testing/run/build/mercury-srcdist-rotd-2024-02-20/stage2/scripts/mmc --generate-dependencies --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS  --local-constraint-propagation --no-fully-strict   purity_opt > purity_opt.dep_err 2>&1
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2024-02-20/tests/purity'
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2024-02-20/tests/purity'
/mnt/testing/run/build/mercury-srcdist-rotd-2024-02-20/stage2/scripts/mmc --make-interface --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS  --local-constraint-propagation --no-fully-strict   purity_opt
make[3]: *** [/tmp/mmake.ApymCW:2150: purity_opt.date] Segmentation fault
make[3]: Target 'purity_opt.runtest' not remade because of errors.
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2024-02-20/tests/purity'