MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2022-02-19/tests/par_conj' /mnt/testing/run/build/mercury-srcdist-rotd-2022-02-19/stage2/scripts/mmc --generate-dependencies --grade asm_fast.par.gc --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS --intermod-opt -O3 impure_wait > impure_wait.dep_err 2>&1 make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2022-02-19/tests/par_conj' make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2022-02-19/tests/par_conj' /mnt/testing/run/build/mercury-srcdist-rotd-2022-02-19/stage2/scripts/mmc --make-interface --grade asm_fast.par.gc --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS --intermod-opt -O3 impure_wait /mnt/testing/run/build/mercury-srcdist-rotd-2022-02-19/stage2/scripts/mmc --make-optimization-interface --grade asm_fast.par.gc --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS --intermod-opt -O3 impure_wait /mnt/testing/run/build/mercury-srcdist-rotd-2022-02-19/stage2/scripts/mmc --compile-to-c --grade asm_fast.par.gc --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS --intermod-opt -O3 impure_wait > impure_wait.err 2>&1 make[3]: *** [/tmp/mmake.AMhxKq:6360: impure_wait.c_date] Error 1 make[3]: Target 'impure_wait.runtest' not remade because of errors. make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2022-02-19/tests/par_conj' ERROR OUTPUT Uncaught Mercury exception: Software Error: predicate `hlds.pred_table.lookup_builtin_pred_proc_id'/8: Unexpected: can't locate par_builtin.new_future/2 END OF THE ERROR OUTPUT