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: 
gcc -Isrc/boot/linuxx64.elf.stub.p -Isrc/boot -I../src/boot -I. -I.. -Isrc/fundamental -I../src/fundamental -fvisibility=hidden -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -Werror -std=gnu17 -Wno-missing-field-initializers -Wno-unused-parameter -Wno-nonnull-compare -Warray-bounds -Warray-bounds=2 -Wdate-time -Wendif-labels -Werror=bool-compare -Werror=discarded-qualifiers -Werror=flex-array-member-not-at-end -Werror=format=2 -Werror=format-signedness -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-pointer-types -Werror=int-conversion -Werror=missing-declarations -Werror=missing-prototypes -Werror=overflow -Werror=override-init -Werror=pointer-sign -Werror=return-type -Werror=shift-count-overflow -Werror=shift-overflow=2 -Werror=strict-flex-arrays -Werror=undef -Wfloat-equal -Wimplicit-fallthrough=5 -Winit-self -Wlogical-op -Wmissing-include-dirs -Wmissing-noreturn -Wnested-externs -Wold-style-definition -Wpointer-arith -Wredundant-decls -Wshadow -Wstrict-aliasing=2 -Wstrict-prototypes -Wsuggest-attribute=noreturn -Wunterminated-string-initialization -Wunused-function -Wwrite-strings -Wzero-as-null-pointer-constant -Wzero-length-bounds -fdiagnostics-show-option -fno-common -fstack-protector -fstack-protector-strong -fstrict-flex-arrays=3 --param=ssp-buffer-size=4 -Wno-maybe-uninitialized -Wno-unused-result -ftrivial-auto-var-init=zero -Werror=shadow -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -fPIE -DSD_BOOT=1 -ffreestanding -fno-strict-aliasing -fshort-wchar -include efi_config.h -fwide-exec-charset=UCS2 -maccumulate-outgoing-args -mstack-protector-guard=global -fcf-protection=none -fno-asynchronous-unwind-tables -fno-exceptions -fno-unwind-tables -fno-sanitize=all '-DEFI_MACHINE_TYPE_NAME="x64"' -m64 -march=x86-64 -mno-red-zone -mgeneral-regs-only -MD -MQ src/boot/linuxx64.elf.stub.p/cpio.c.o -MF src/boot/linuxx64.elf.stub.p/cpio.c.o.d -o src/boot/linuxx64.elf.stub.p/cpio.c.o -c ../src/boot/cpio.c
In file included from ../src/boot/device-path-util.h:5,
                 from ../src/boot/cpio.c:4:
../src/boot/util.h:17:6: error: redundant redeclaration of âfreeâ [-Werror=redundant-decls]
   17 | void free(void *p);
      |      ^~~~
In file included from ../src/boot/cpio.h:5,
                 from ../src/boot/cpio.c:3:
../src/fundamental/iovec-util-fundamental.h:14:6: note: previous declaration of âfreeâ with type âvoid(void *)â
   14 | void free(void *p);
      |      ^~~~

Answer: Build failed during compilation, with redundant redeclaration of free function.