/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/ is in libphobos-5-dev-armel-cross 5.3.1-14ubuntu2cross1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/complex.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/config.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/ctype.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/errno.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/fenv.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/float_.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/inttypes.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/limits.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/locale.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/math.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/signal.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/stdarg.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/stddef.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/stdint.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/stdio.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/stdlib.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/string.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/tgmath.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/time.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/wchar_.d
/usr/lib/gcc-cross/arm-linux-gnueabi/5/include/d/core/stdc/wctype.d