MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-12-10/tests/invalid_nodepend'
if /mnt/testing/run/build/mercury-srcdist-rotd-2023-12-10/stage2/scripts/mmc --errorcheck-only --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS  --no-halt-at-invalid-interface   null_char \
	> null_char.err 2>&1; \
then false; \
else true; \
fi
Comparing null_char.err with null_char.err_exp*,
	results in null_char.err_res
** null_char.err did not match the expected error output
** (closest match was null_char.err_res1)
--- null_char.err_exp	2021-07-28 22:23:57.000000000 +1000
+++ null_char.err	2023-12-11 12:39:25.807442750 +1100
@@ -1,33 +1 @@
-null_char.m:017: Error: clause for predicate `int'/0
-null_char.m:017:   without corresponding `:- pred' declaration.
-null_char.m:017: Inferred :- pred int.
-null_char.m:017: Syntax error: null character is illegal in strings and names.
-null_char.m:019: In clause head:
-null_char.m:019:   error: expected a symbol name, got `1'.
-null_char.m:019: Syntax error: null character is illegal in strings and names.
-null_char.m:021: Error: no clauses for predicate `wrong2'/1.
-null_char.m:023: Syntax error at token `)': unexpected token at start of
-null_char.m:023:   (sub)term.
-null_char.m:023: Syntax error: null character is illegal in strings and names.
-null_char.m:025: Error: no clauses for predicate `wrong3'/1.
-null_char.m:027: Syntax error at token `. ': unexpected token at start of
-null_char.m:027:   (sub)term.
-null_char.m:027: Syntax error: null character is illegal in strings and names.
-null_char.m:029: Error: no clauses for predicate `wrong4'/1.
-null_char.m:031: Syntax error at token `)': unexpected token at start of
-null_char.m:031:   (sub)term.
-null_char.m:031: Syntax error: null character is illegal in strings and names.
-null_char.m:033: Syntax error at token `. ': unexpected token at start of
-null_char.m:033:   (sub)term.
-null_char.m:033: Syntax error: null character is illegal in strings and names.
-null_char.m:035: Syntax error at token `. ': unexpected token at start of
-null_char.m:035:   (sub)term.
-null_char.m:035: Syntax error: null character is illegal in strings and names.
-null_char.m:039: Error: no clauses for predicate `wrong7'/1.
-null_char.m:041: Syntax error at token `)': unexpected token at start of
-null_char.m:041:   (sub)term.
-null_char.m:041: Syntax error: null character is illegal in strings and names.
-null_char.m:043: Error: no clauses for predicate `wrong8'/1.
-null_char.m:045: Syntax error at token `)': unexpected token at start of
-null_char.m:045:   (sub)term.
-null_char.m:045: Syntax error: null character is illegal in strings and names.
+Segmentation fault (core dumped)
make[3]: *** [../Mmake.common:172: null_char.err_res] Error 1
make[3]: Target 'null_char.runtest' not remade because of errors.
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-12-10/tests/invalid_nodepend'