Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
[chrome:17/51408] CXX obj/base/third_party/cityhash/cityhash/city.o
FAILED: obj/base/third_party/cityhash/cityhash/city.o 
clang++ -MD -MF obj/base/third_party/cityhash/cityhash/city.o.d -DUSE_UDEV -DUSE_AURA=1 -DUSE_GLIB=1 -DUSE_OZONE=1 -DOFFICIAL_BUILD -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D_FORTIFY_SOURCE=2 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNO_UNWIND_TABLES -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS -D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS -D_LIBCPP_INSTRUMENTED_WITH_ASAN=0 -DCR_LIBCXX_REVISION=449310fe2e37834a7e62972d2a690cade2ef596b -DTMP_REBUILD_HACK -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -I../.. -Igen -I../../buildtools/third_party/libc++ -Wall -Wextra -Wimplicit-fallthrough -Wextra-semi -Wunreachable-code-aggressive -Wthread-safety -Wgnu -Wno-gnu-anonymous-struct -Wno-gnu-conditional-omitted-operand -Wno-gnu-include-next -Wno-gnu-label-as-value -Wno-gnu-redeclared-enum -Wno-gnu-statement-expression -Wno-gnu-zero-variadic-macro-arguments -Wno-zero-length-array -Wno-missing-field-initializers -Wno-unused-parameter -Wno-psabi -Wloop-analysis -Wno-unneeded-internal-declaration -Wno-cast-function-type -Wno-thread-safety-reference-return -Wno-nontrivial-memcall -Wshadow -fno-delete-null-pointer-checks -fno-strict-overflow -fno-ident -fno-strict-aliasing -fstack-protector-strong -ftrivial-auto-var-init=zero -fwrapv -fno-unwind-tables -fno-asynchronous-unwind-tables -fPIC -pthread -fcolor-diagnostics -fmerge-all-constants -fno-sized-deallocation -fcrash-diagnostics-dir=../../tools/clang/crashreports -mllvm -instcombine-lower-dbg-declare=0 -ffp-contract=off -flto=thin -fsplit-lto-unit -mllvm -inlinehint-threshold=360 -fwhole-program-vtables -fcomplete-member-pointers -m64 -msse3 -ffile-compilation-dir=. -no-canonical-prefixes -Xclang --warning-suppression-mappings=../../build/config/warning_suppression.txt -ftrivial-auto-var-init=pattern -O2 -fdata-sections -ffunction-sections -fno-unique-section-names -fno-math-errno -fno-omit-frame-pointer -g0 -fsanitize=cfi-vcall -fsanitize-ignorelist=../../tools/cfi/ignores.txt -fsanitize=cfi-icall -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -Wno-invalid-offsetof -Wenum-compare-conditional -Wno-nullability-completeness -std=c++20 -Wno-trigraphs -gsimple-template-names -fno-exceptions -fno-rtti -nostdinc++ -isystem../../third_party/libc++/src/include -isystem../../third_party/libc++abi/src/include -fvisibility-inlines-hidden  -Wno-deprecated-declarations -Wno-unknown-warning-option -Wno-unused-command-line-argument -Wno-unused-but-set-variable -Wno-unused-result -Wno-unused-function -Wno-unused-variable -Wno-unused-const-variable -Wno-unneeded-internal-declaration -Wno-unknown-attributes -Wno-unknown-pragmas  -c ../../base/third_party/cityhash/city.cc -o obj/base/third_party/cityhash/cityhash/city.o
error: unknown argument: '--warning-suppression-mappings=../../build/config/warning_suppression.txt'

Answer: The relevant error messages indicate that clang compiler breaks with the error "unknown argument" '--warning-suppression-mappings=../../build/config/warning_suppression.txt'