message: activate assembly support for basic function (e.g. memcpy)
diff: [unstable]
  build-std = ["core", "alloc"]
  -build-std-features = ["compiler-builtins-mem"]
  +build-std-features = ["compiler-builtins-mem", "compiler-builtins-asm"]
  [build]
  target = "x86_64-unknown-hermit-kernel"
  