this derivation will be built:
  /nix/store/ldysgssx72br67rhp6d6zkif5zmr79gf-python3.9-amazon_kclpy-2.0.6.drv
error: Cannot build '/nix/store/ldysgssx72br67rhp6d6zkif5zmr79gf-python3.9-amazon_kclpy-2.0.6.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/823s4hbkbi7cnvchfmrgk6vq6k1v647n-python3.9-amazon_kclpy-2.0.6
         /nix/store/a0ar6yzsmxl2hflr5632q3mb1pwlsf1a-python3.9-amazon_kclpy-2.0.6-dist
       Last 25 log lines:
       >
       > The above exception was the direct cause of the following exception:
       >
       > Traceback (most recent call last):
       >   File "/build/source/nix_run_setup", line 8, in <module>
       >     exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\\r\\n', '\\n'), __file__, 'exec'))
       >   File "setup.py", line 278, in <module>
       >     setup(
       >   File "/nix/store/awwwhivg0g9y4kj7avqg7isqrp72r8zg-python3.9-setuptools-65.3.0/lib/python3.9/site-packages/setuptools/__init__.py", line 86, in setup
       >     _install_setup_requires(attrs)
       >   File "/nix/store/awwwhivg0g9y4kj7avqg7isqrp72r8zg-python3.9-setuptools-65.3.0/lib/python3.9/site-packages/setuptools/__init__.py", line 80, in _install_setup_requires
       >     dist.fetch_build_eggs(dist.setup_requires)
       >   File "/nix/store/awwwhivg0g9y4kj7avqg7isqrp72r8zg-python3.9-setuptools-65.3.0/lib/python3.9/site-packages/setuptools/dist.py", line 875, in fetch_build_eggs
       >     resolved_dists = pkg_resources.working_set.resolve(
       >   File "/nix/store/awwwhivg0g9y4kj7avqg7isqrp72r8zg-python3.9-setuptools-65.3.0/lib/python3.9/site-packages/pkg_resources/__init__.py", line 789, in resolve
       >     dist = best[req.key] = env.best_match(
       >   File "/nix/store/awwwhivg0g9y4kj7avqg7isqrp72r8zg-python3.9-setuptools-65.3.0/lib/python3.9/site-packages/pkg_resources/__init__.py", line 1075, in best_match
       >     return self.obtain(req, installer)
       >   File "/nix/store/awwwhivg0g9y4kj7avqg7isqrp72r8zg-python3.9-setuptools-65.3.0/lib/python3.9/site-packages/pkg_resources/__init__.py", line 1087, in obtain
       >     return installer(requirement)
       >   File "/nix/store/awwwhivg0g9y4kj7avqg7isqrp72r8zg-python3.9-setuptools-65.3.0/lib/python3.9/site-packages/setuptools/dist.py", line 945, in fetch_build_egg
       >     return fetch_build_egg(self, req)
       >   File "/nix/store/awwwhivg0g9y4kj7avqg7isqrp72r8zg-python3.9-setuptools-65.3.0/lib/python3.9/site-packages/setuptools/installer.py", line 84, in fetch_build_egg
       >     raise DistutilsError(str(e)) from e
       > distutils.errors.DistutilsError: Command '['/nix/store/30xlnfzi3g3liciakaa5za905grmp81j-python3-3.9.16/bin/python3.9', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/build/tmpi86n924i', '--quiet', 'pytest-runner']' returned non-zero exit status 1.
       For full logs, run:
         nix log /nix/store/ldysgssx72br67rhp6d6zkif5zmr79gf-python3.9-amazon_kclpy-2.0.6.drv