buildx failed with: ERROR: failed to build: failed to solve: process "/bin/sh -c set -ex ; rm -rf /src ; mkdir -p /src ; tar -xf /tmp/gcc.tar.xz -C /src --strip-components=1 ; echo $GCC_VERSION > /src/gcc/BASE-VER ; rm -rf /tmp/gcc-build ; mkdir -p /tmp/gcc-build/amd64 ; cd /tmp/gcc-build/amd64 ; /src/configure --enable-languages=c,c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-15 --enable-shared --enable-linker-build-id --libexecdir=/usr/libexec --without-included-gettext --enable-threads=posix --libdir=/usr/lib --disable-nls --disable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-libstdcxx-backtrace --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --enable-cet --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64 --enable-multilib --with-tune=generic --without-cuda-driver --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --enable-link-serialization=2 --with-build-config=bootstrap-lean --enable-checking=release --enable-libphobos-checking=release ; make -j$(nproc) ; make install-strip DESTDIR=/opt/gcc/x86_64-linux-gnu ; rm /opt/gcc/x86_64-linux-gnu/usr/bin/*-tmp ; rm -rf /tmp/gcc-build" did not complete successfully: exit code: 2