master branch: commit r16-7029 failed to bootstrap on Linux/x86_64 (commit r16-7019 builds)!

fi
make[2]: Entering directory '/export/home/haochenj/src/gcc-regression'
rm -rf bld
mkdir -p bld
cd bld; \
RUNTESTFLAGS="--target_board='unix{-m32,}'" ../src-master/configure \
	--with-arch=corei7 --with-cpu=corei7 --enable-clocale=gnu --with-system-zlib --enable-shared --enable-cet --with-demangler-in-ld --enable-libmpx --prefix=/usr/gcc-16.0.1 --with-fpmath=sse 
    grep -E "(error:|Error)" makelog.r16-7029.x86_64.corei7 >> makelog.r16-7029.x86_64.corei7.mail; \
    tail -n +20 makelog.r16-7029.x86_64.corei7 | grep -C 10 -E "error:|Error:" >> makelog.r16-7029.x86_64.corei7.mail; \
cc1: internal compiler error: in fail_formatted, at selftest.cc:64
cc1plus: internal compiler error: in fail_formatted, at selftest.cc:64
make[6]: *** [../../src-master/gcc/c/Make-lang.in:153: s-selftest-c] Error 1
make[6]: *** [../../src-master/gcc/cp/Make-lang.in:276: s-selftest-c++] Error 1
make[5]: *** [Makefile:5125: all-stage1-gcc] Error 2
make[4]: *** [Makefile:30761: stage1-bubble] Error 2
make[3]: *** [Makefile:31162: bootstrap] Error 2
make[2]: *** [Makefile:313: bootstrap] Error 2
==================== Detailed Info around error (+- 10 Lines) ====================
+++ /tmp/ccELIO0B.txt	2026-01-25 12:58:55.961274396 -0800
@@ -1 +1 @@
-gcc/Code-Gen-Options.html#index-fno-pack-struct
\ No newline at end of file
+gcc/Code-Gen-Options.html#index-fpack-struct
\ No newline at end of file
../../src-master/gcc/gcc-urlifier.cc:265: test_gcc_urlifier: FAIL: ASSERT_STREQ (u.get_url_suffix_for_quoted_text ("-fpack-struct").get (), "gcc/Code-Gen-Options.html#index-fpack-struct")
 val1="gcc/Code-Gen-Options.html#index-fno-pack-struct"
 val2="gcc/Code-Gen-Options.html#index-fpack-struct"

cc1: internal compiler error: in fail_formatted, at selftest.cc:64
--- /tmp/cc3viI0n.txt	2026-01-25 12:58:55.974105438 -0800
+++ /tmp/ccVW28E8.txt	2026-01-25 12:58:55.974120003 -0800
@@ -1 +1 @@
-gcc/Code-Gen-Options.html#index-fno-pack-struct
\ No newline at end of file
+gcc/Code-Gen-Options.html#index-fpack-struct
\ No newline at end of file
../../src-master/gcc/gcc-urlifier.cc:265: test_gcc_urlifier: FAIL: ASSERT_STREQ (u.get_url_suffix_for_quoted_text ("-fpack-struct").get (), "gcc/Code-Gen-Options.html#index-fpack-struct")
 val1="gcc/Code-Gen-Options.html#index-fno-pack-struct"
 val2="gcc/Code-Gen-Options.html#index-fpack-struct"

cc1plus: internal compiler error: in fail_formatted, at selftest.cc:64
0x2d886d0 internal_error(char const*, ...)
	../../src-master/gcc/diagnostic-global-context.cc:787
0x2d9701f fancy_abort(char const*, int, char const*)
	../../src-master/gcc/diagnostics/context.cc:1812
0x2d6dc53 selftest::fail_formatted(selftest::location const&, char const*, ...)
	../../src-master/gcc/selftest.cc:64
0x2d6de4e selftest::assert_streq(selftest::location const&, char const*, char const*, char const*, char const*)
	../../src-master/gcc/selftest.cc:116
0x9351da test_gcc_urlifier
	../../src-master/gcc/gcc-urlifier.cc:265