MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2019-05-04/tests/invalid'
if /mnt/testing/run/build/mercury-srcdist-rotd-2019-05-04/stage2/scripts/mmc --target-code-only --grade asm_fast.gc.profdeep.stseg     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS  -O0 --optimise-tailcalls --no-warn-non-tail-recursion   \
		require_tailrec_1 > require_tailrec_1.err 2>&1; \
then false; \
else true; \
fi
Comparing require_tailrec_1.err with require_tailrec_1.err_exp*,
	results in require_tailrec_1.err_res
** require_tailrec_1.err did not match the expected error output
** (closest match was require_tailrec_1.err_res1)
--- require_tailrec_1.err_exp	2018-08-16 20:41:43.000000000 +1000
+++ require_tailrec_1.err	2019-05-06 06:08:59.110491052 +1000
@@ -5,6 +5,9 @@
 require_tailrec_1.m:055: In mode number 1 of function `even1'/1:
 require_tailrec_1.m:055:   warning: mutually recursive call to function
 require_tailrec_1.m:055:   `require_tailrec_1.odd1'/1 is not tail recursive.
+require_tailrec_1.m:064: In mode number 1 of function `odd1'/1:
+require_tailrec_1.m:064:   warning: mutually recursive call to function
+require_tailrec_1.m:064:   `require_tailrec_1.even1'/1 is not tail recursive.
 require_tailrec_1.m:075: In mode number 1 of predicate `qsortapp_1'/2:
 require_tailrec_1.m:075:   warning: self-recursive call is not tail recursive.
 require_tailrec_1.m:093: In mode number 1 of predicate `qsortapp_3'/2:
../Mmake.common:147: recipe for target 'require_tailrec_1.err_res' failed
make[3]: *** [require_tailrec_1.err_res] Error 1
make[3]: Target 'require_tailrec_1.runtest' not remade because of errors.
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2019-05-04/tests/invalid'