Created attachment 555324 [details] emerge --info '=sys-devel/llvm-6.0.1::gentoo' install gentoo as guest os on virtualbox 5.2.22, with stage3-amd64-systemd-20181113.tar.bz2, LLVM-6.0.1 build failed, error reason is not clear.
emerge -pqv '=sys-devel/llvm-6.0.1::gentoo' [ebuild N ] sys-devel/llvm-6.0.1 USE="libffi ncurses xml -debug -doc -gold -libedit -test -xar" ABI_X86="(64) -32 (-x32)" LLVM_TARGETS="AMDGPU BPF NVPTX (X86) -AArch64 -ARM -Hexagon -Lanai -MSP430 -Mips -PowerPC -Sparc -SystemZ -XCore"
Created attachment 555326 [details] build log part1
Created attachment 555328 [details] build log part2
Created attachment 555330 [details] build log part3
You ran out of memory.