Here you have it:
Traceback (most recent call last):
  File "setup.py", line 752, in <module>
    build_deps()
  File "setup.py", line 320, in build_deps
    build_dir='build')
  File "C:\pytorch\tools\build_pytorch_libs.py", line 88, in build_caffe2
    check_call(build_cmd, cwd=build_dir, env=my_env)
  File "C:\Users\gjben\Anaconda3\lib\subprocess.py", line 291, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['cmake', '--build', '.', '--target', 'install', '--config', 'Release', '--', '/maxcpucount:8']' returned non-zero exit status 1.

And here you have the lines I could record from the full-log:
partial-log 1