MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2020-11-05/tests/invalid'
if /mnt/testing/run/build/mercury-srcdist-rotd-2020-11-05/stage2/scripts/mmc --target-code-only --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS -O5 --intermod-opt -O0 --optimise-tailcalls --warn-non-tail-recursion self-and-mutual   \
	require_tailrec_3 > require_tailrec_3.err 2>&1; \
then false; \
else true; \
fi
Comparing require_tailrec_3.err with require_tailrec_3.err_exp*,
	results in require_tailrec_3.err_res
** require_tailrec_3.err did not match the expected error output
** (closest match was require_tailrec_3.err_res1)
--- require_tailrec_3.err_exp	2020-10-11 14:28:49.000000000 +1100
+++ require_tailrec_3.err	2020-11-07 07:48:06.759903230 +1100
@@ -1,9 +1,6 @@
-require_tailrec_3.m:038: In mode number 1 of function `even1'/1:
-require_tailrec_3.m:038:   warning: mutually recursive call to function
-require_tailrec_3.m:038:   `odd1'/1 is not tail recursive.
-require_tailrec_3.m:053: In mode number 1 of function `even2'/1:
-require_tailrec_3.m:053:   error: mutually recursive call to function `odd2'/1
-require_tailrec_3.m:053:   is not tail recursive.
-require_tailrec_3.m:068: In mode number 1 of function `even3'/1:
-require_tailrec_3.m:068:   warning: mutually recursive call to function
-require_tailrec_3.m:068:   `odd3'/1 is not tail recursive.
+require_tailrec_3.m:044: In mode number 1 of function `even1'/1:
+require_tailrec_3.m:044:   warning: self-recursive call is not tail recursive.
+require_tailrec_3.m:059: In mode number 1 of function `even2'/1:
+require_tailrec_3.m:059:   error: self-recursive call is not tail recursive.
+require_tailrec_3.m:074: In mode number 1 of function `even3'/1:
+require_tailrec_3.m:074:   warning: self-recursive call is not tail recursive.
../Mmake.common:169: recipe for target 'require_tailrec_3.err_res' failed
make[3]: *** [require_tailrec_3.err_res] Error 1
make[3]: Target 'require_tailrec_3.runtest' not remade because of errors.
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2020-11-05/tests/invalid'