MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress
cat: impure_func_t3.d: No such file or directory
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-01-19/tests/invalid_purity'
/mnt/testing/run/build/mercury-srcdist-rotd-2023-01-19/stage2/scripts/mmc --generate-dependencies --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS  --no-intermodule-optimization    impure_func_t4 > impure_func_t4.dep_err 2>&1
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-01-19/tests/invalid_purity'
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-01-19/tests/invalid_purity'
/mnt/testing/run/build/mercury-srcdist-rotd-2023-01-19/stage2/scripts/mmc --make-interface --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS  --no-intermodule-optimization    impure_func_t4
make[3]: *** [/tmp/mmake.mR0k21:1457: impure_func_t4.date] Segmentation fault
make[3]: Target 'impure_func_t4.runtest' not remade because of errors.
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-01-19/tests/invalid_purity'