How to ATSS setup in pytorch v1.7.1

Traceback (most recent call last):
  File "setup.py", line 76, in <module>
    include_package_data=True,
  File "/opt/conda/lib/python3.6/site-packages/setuptools/__init__.py", line 163, in setup
    return distutils.core.setup(**attrs)
  File "/opt/conda/lib/python3.6/distutils/core.py", line 148, in setup
    dist.run_commands()
  File "/opt/conda/lib/python3.6/distutils/dist.py", line 955, in run_commands
    self.run_command(cmd)
  File "/opt/conda/lib/python3.6/distutils/dist.py", line 974, in run_command
    cmd_obj.run()
  File "/opt/conda/lib/python3.6/distutils/command/build.py", line 135, in run
    self.run_command(cmd_name)
  File "/opt/conda/lib/python3.6/distutils/cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "/opt/conda/lib/python3.6/distutils/dist.py", line 974, in run_command
    cmd_obj.run()
  File "/opt/conda/lib/python3.6/site-packages/setuptools/command/build_ext.py", line 87, in run
    _build_ext.run(self)
  File "/opt/conda/lib/python3.6/site-packages/Cython/Distutils/old_build_ext.py", line 186, in run
    _build_ext.build_ext.run(self)enter code here
  File "/opt/conda/lib/python3.6/distutils/command/build_ext.py", line 339, in run
    self.build_extensions()
  File "/opt/conda/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 649, in build_extensions
    build_ext.build_extensions(self)
  File "/opt/conda/lib/python3.6/site-packages/Cython/Distutils/old_build_ext.py", line 194, in build_extensions
    self.build_extension(ext)
  File "/opt/conda/lib/python3.6/site-packages/setuptools/command/build_ext.py", line 208, in build_extension
    _build_ext.build_extension(self, ext)
  File "/opt/conda/lib/python3.6/distutils/command/build_ext.py", line 533, in build_extension
    depends=ext.depends)
  File "/opt/conda/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 478, in unix_wrap_ninja_compile
    with_cuda=with_cuda)
  File "/opt/conda/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 1233, in _write_ninja_file_and_compile_objects
    error_prefix='Error compiling objects for extension')
  File "/opt/conda/lib/python3.6/site-packages/torch/utils/cpp_extension.py", line 1529, in _run_ninja_build
    raise RuntimeError(message)
RuntimeError: Error compiling objects for extension

source : GitHub - sfzhang15/ATSS: Bridging the Gap Between Anchor-based and Anchor-free Detection via Adaptive Training Sample Selection, CVPR, Oral, 2020
I want to use it in pytorch 1.7 version.
But I got the following error.
My environment is nvidia docker 20.09.
ubuntu :18.04
python : 3.6
pytorch : 1.7
torchvision : 0.4
cuda : 11.0

Please help me