A buddy asked me to add that he's also unable to build - Trusty (14.04.5).

...
ld -r -o /tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-modeset/nv-modeset-interface.o /tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-modeset/nvidia-modeset-linux.o
  LD [M]  /tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-modeset.o
/tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-drm/nvidia-drm-linux.c: In function ‘nvidia_drm_lock_user_pages’:
/tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-drm/nvidia-drm-linux.c:140:5: warning: passing argument 6 of ‘get_user_pages’ makes pointer from integer without a cast [enabled by default]
     pages_pinned = NV_GET_USER_PAGES(address, pages_count, write, force,
     ^
In file included from include/linux/scatterlist.h:7:0,
                 from include/linux/dma-mapping.h:10,
                 from include/drm/drmP.h:37,
                 from /tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-drm/nvidia-drm-os-interface.h:32,
                 from /tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-drm/nvidia-drm-linux.c:27:
include/linux/mm.h:1222:6: note: expected ‘struct page **’ but argument is of type ‘int’
 long get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
      ^
/tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-drm/nvidia-drm-linux.c:140:5: warning: passing argument 7 of ‘get_user_pages’ from incompatible pointer type [enabled by default]
     pages_pinned = NV_GET_USER_PAGES(address, pages_count, write, force,
     ^
In file included from include/linux/scatterlist.h:7:0,
                 from include/linux/dma-mapping.h:10,
                 from include/drm/drmP.h:37,
                 from /tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-drm/nvidia-drm-os-interface.h:32,
                 from /tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-drm/nvidia-drm-linux.c:27:
include/linux/mm.h:1222:6: note: expected ‘struct vm_area_struct **’ but argument is of type ‘struct page **’
 long get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
      ^
/tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-drm/nvidia-drm-linux.c:140:5: error: too many arguments to function ‘get_user_pages’
     pages_pinned = NV_GET_USER_PAGES(address, pages_count, write, force,
     ^
In file included from include/linux/scatterlist.h:7:0,
                 from include/linux/dma-mapping.h:10,
                 from include/drm/drmP.h:37,
                 from /tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-drm/nvidia-drm-os-interface.h:32,
                 from /tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-drm/nvidia-drm-linux.c:27:
include/linux/mm.h:1222:6: note: declared here
 long get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
      ^
make[2]: *** [/tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel/nvidia-drm/nvidia-drm-linux.o] Error 1
make[2]: Target `__build' not remade because of errors.
make[1]: *** [_module_/tmp/selfgz3636/NVIDIA-Linux-x86_64-367.35/kernel] Error 2
make[1]: Target `modules' not remade because of errors.
make[1]: Leaving directory `/usr/src/linux-headers-4.4.0-143-generic'
make: *** [modules] Error 2
ERROR: The nvidia kernel module was not created.
ERROR: Installation has failed.  Please see the file '/var/log/nvidia-installer.log' for details.  You may find suggestions on fixing installation problems in the README available on the Linux driver download page at www.nvidia.com.