It looks like there is a problem with the way you mounted your NTFS partition. Make sure that you have necessary permissions to set times using touch command and retry the build.
I used Ubuntu in live-usb mode. After finishing ./GenerateProjectFiles.sh I turned off Ubuntu, on another day I booted from live-usb again to continue. Engine is located on NTFS partition. Both times I mounted NTFS partition with fmask=000,dmask=000.
I used Ubuntu in live-usb mode. After finishing ./GenerateProjectFiles.sh I turned off Ubuntu, on another day I booted from live-usb again to continue. Engine is located on NTFS partition. Both times I mounted NTFS partition with fmask=000,dmask=000.
You better create a VM with Ubuntu 14.04.3 LTS and compile it from there. Don’t use ntfs to compile. Compile on the default file system and copy if you have to onto your ntfs partition. Life CD are to test and play around with the OS not to do serious compiling like compiling a project like UE4