master branch: commit r15-1643 failed to bootstrap on Linux/x86_64 (commit r15-1594 builds)!

[haochenj--- via Gcc-testresults]

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-15.0.0 --with-fpmath=sse 
checking build system type... x86_64-pc-linux-gnu
    grep "Error " makelog.r15-1643.x86_64.corei7 >> 
makelog.r15-1643.x86_64.corei7.mail; \
make[6]: [Makefile:1832: x86_64-pc-linux-gnu/bits/largefile-config.h] Error 1 
(ignored)
make[6]: [Makefile:1831: x86_64-pc-linux-gnu/bits/largefile-config.h] Error 1 
(ignored)
make[6]: [Makefile:1832: x86_64-pc-linux-gnu/bits/largefile-config.h] Error 1 
(ignored)
make[6]: *** [Makefile:2557: i386.o] Error 1
make[5]: *** [Makefile:5108: all-stage2-gcc] Error 2
make[4]: *** [Makefile:30031: stage2-bubble] Error 2
make[3]: *** [Makefile:30275: bootstrap] Error 2
make[2]: *** [Makefile:313: bootstrap] Error 2
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-I../../src-master/gcc/../libdecnumber 
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-I../../src-master/gcc/objc -I../../src-master/gcc/../include  
-I../../src-master/gcc/../libcpp/include -I../../src-master/gcc/../libcody 
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../../src-master/gcc/gengtype-lex.l: In function ‘int yylex(const char**)’:
gengtype-lex.cc:356:15: warning: this statement may fall through 
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  356 |  */
      |  ~~           ^      
../../src-master/gcc/gengtype-lex.l:119:1: note: in expansion of macro 
‘YY_DO_BEFORE_ACTION’
  119 | "GTY"/{EOID}                    { return GTY_TOKEN; }
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src-master/gcc/gengtype-lex.l:114:1: note: here
  114 | "^"                                     |
      | ^~~~~~~~
gengtype-lex.cc:356:15: warning: this statement may fall through 
[-Wimplicit-fallthrough=]
  356 |  */
      |  ~~           ^      
../../src-master/gcc/gengtype-lex.l:139:1: note: in expansion of macro 
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  139 | 
      | ^                  
../../src-master/gcc/gengtype-lex.l:135:1: note: here
  135 |   size_t len;
      | ^ ~~
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-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings 
-Wcast-qual -Wmissing-format-attribute -Wconditionally-supported 
-Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros 
-Wno-overlength-strings -Werror -fno-common  -DHAVE_CONFIG_H -no-pie 
-static-libstdc++ -static-libgcc  gcov-dump.o \
        hash-table.o ggc-none.o\
        libcommon.a ../libcpp/libcpp.a   ../libbacktrace/.libs/libbacktrace.a 
../libiberty/libiberty.a ../libdecnumber/libdecnumber.a  -o gcov-dump
/export/home/haochenj/src/gcc-regression/bld/./prev-gcc/xg++ 
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 -no-pie   -g -O2 -fno-checking -gtoggle -DIN_GCC    -fno-exceptions -fno-rtti 
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings 
-Wcast-qual -Wmissing-format-attribute -Wconditionally-supported 
-Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros 
-Wno-overlength-strings -Werror -fno-common  -DHAVE_CONFIG_H -no-pie 
-static-libstdc++ -static-libgcc  gcov-tool.o libgcov-util.o 
libgcov-driver-tool.o libgcov-merge-tool.o libcommon.a ../libcpp/libcpp.a   
../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a 
../libdecnumber/libdecnumber.a  -o gcov-tool
/export/home/haochenj/src/gcc-regression/bld/./prev-gcc/xg++ 
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-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings 
-Wcast-qual -Wmissing-format-attribute -Wconditionally-supported 
-Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros 
-Wno-overlength-strings -Werror -fno-common  -DHAVE_CONFIG_H -no-pie 
-static-libstdc++ -static-libgcc  gcc-ar.o -o gcc-ar \
        file-find.o libcommon.a ../libcpp/libcpp.a   
../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a 
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/export/home/haochenj/src/gcc-regression/bld/./prev-gcc/xg++ 
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-Wno-overlength-strings -Werror -fno-common  -DHAVE_CONFIG_H -no-pie 
-static-libstdc++ -static-libgcc  gcc-nm.o -o gcc-nm \
        file-find.o libcommon.a ../libcpp/libcpp.a   
../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a 
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-Wno-overlength-strings -Werror -fno-common  -DHAVE_CONFIG_H -no-pie 
-static-libstdc++ -static-libgcc  gcc-ranlib.o -o gcc-ranlib \
        file-find.o libcommon.a ../libcpp/libcpp.a   
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-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings 
-Wcast-qual -Wmissing-format-attribute -Wconditionally-supported 
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-Wno-overlength-strings -Werror -fno-common  -DHAVE_CONFIG_H -no-pie 
-static-libstdc++ -static-libgcc  -o Tcollect2 \
        collect2.o collect2-aix.o vec.o ggc-none.o collect-utils.o file-find.o 
hash-table.o selftest.o libcommon.a ../libcpp/libcpp.a   
../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a 
../libdecnumber/libdecnumber.a  
mv -f Tcollect2 collect2
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-Wcast-qual -Wmissing-format-attribute -Wconditionally-supported 
-Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros 
-Wno-overlength-strings -Werror -fno-common  -DHAVE_CONFIG_H -no-pie 
-static-libstdc++ -static-libgcc  -o Tlto-wrapper \
   lto-wrapper.o collect-utils.o ggc-none.o libcommon-target.a libcommon.a 
../libcpp/libcpp.a   ../libbacktrace/.libs/libbacktrace.a 
../libiberty/libiberty.a ../libdecnumber/libdecnumber.a 
mv -f Tlto-wrapper lto-wrapper
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-static-libstdc++ -static-libgcc  -o gengtype \
    gengtype.o gengtype-lex.o gengtype-parse.o gengtype-state.o errors.o 
libcommon.a ../libcpp/libcpp.a   ../libbacktrace/.libs/libbacktrace.a 
../libiberty/libiberty.a ../libdecnumber/libdecnumber.a 
/export/home/haochenj/src/gcc-regression/bld/./prev-gcc/xg++ 
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-Wno-overlength-strings -Werror -fno-common  -DHAVE_CONFIG_H -no-pie 
-static-libstdc++ -static-libgcc  gcov.o json.o \
        hash-table.o ggc-none.o libcommon.a ../libcpp/libcpp.a   
../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a 
../libdecnumber/libdecnumber.a  -lz -o gcov
cc1plus: all warnings being treated as errors
make[6]: *** [Makefile:2557: i386.o] Error 1
make[6]: *** Waiting for unfinished jobs....
rm gfdl.pod gcc.pod gfortran.pod gcov-dump.pod gcov-tool.pod fsf-funding.pod 
gpl.pod cpp.pod gcov.pod lto-dump.pod
make[6]: Leaving directory '/export/home/haochenj/src/gcc-regression/bld/gcc'
make[5]: *** [Makefile:5108: all-stage2-gcc] Error 2
make[5]: Leaving directory '/export/home/haochenj/src/gcc-regression/bld'
make[4]: *** [Makefile:30031: stage2-bubble] Error 2
make[4]: Leaving directory '/export/home/haochenj/src/gcc-regression/bld'
make[3]: *** [Makefile:30275: bootstrap] Error 2
make[3]: Leaving directory '/export/home/haochenj/src/gcc-regression/bld'
Command exited with non-zero status 2
13688.37user 820.36system 21:03.24elapsed 1148%CPU (0avgtext+0avgdata 
1483776maxresident)k
8inputs+10120280outputs (701major+127326807minor)pagefaults 0swaps
make[2]: *** [Makefile:313: bootstrap] Error 2
make[2]: Leaving directory '/export/home/haochenj/src/gcc-regression'