Free-threaded Python Library Compatibility Checker

_out["return_val"] = hook(**hook_input["kwargs"])
                                   ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/tmpopne9hgs/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 280, in build_wheel
          return _build_backend().build_wheel(
                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
              wheel_directory, config_settings, metadata_directory
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
          )
          ^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 435, in build_wheel
          return _build(['bdist_wheel', '--dist-info-dir', str(metadata_directory)])
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 423, in _build
          return self._build_with_temp_dir(
                 ~~~~~~~~~~~~~~~~~~~~~~~~~^
              cmd,
              ^^^^
          ...<3 lines>...
              self._arbitrary_args(config_settings),
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
          )
          ^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 404, in _build_with_temp_dir
          self.run_setup()
          ~~~~~~~~~~~~~~^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 317, in run_setup
          exec(code, locals())
          ~~~~^^^^^^^^^^^^^^^^
        File "<string>", line 202, in <module>
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/__init__.py", line 115, in setup
          return distutils.core.setup(**attrs)
                 ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/_distutils/core.py", line 186, in setup
          return run_commands(dist)
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/_distutils/core.py", line 202, in run_commands
          dist.run_commands()
          ~~~~~~~~~~~~~~~~~^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/_distutils/dist.py", line 1002, in run_commands
          self.run_command(cmd)
          ~~~~~~~~~~~~~~~~^^^^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/dist.py", line 1102, in run_command
          super().run_command(command)
          ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/_distutils/dist.py", line 1021, in run_command
          cmd_obj.run()
          ~~~~~~~~~~~^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/command/bdist_wheel.py", line 370, in run
          self.run_command("build")
          ~~~~~~~~~~~~~~~~^^^^^^^^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/_distutils/cmd.py", line 357, in run_command
          self.distribution.run_command(command)
          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/dist.py", line 1102, in run_command
          super().run_command(command)
          ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/_distutils/dist.py", line 1021, in run_command
          cmd_obj.run()
          ~~~~~~~~~~~^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/_distutils/command/build.py", line 135, in run
          self.run_command(cmd_name)
          ~~~~~~~~~~~~~~~~^^^^^^^^^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/_distutils/cmd.py", line 357, in run_command
          self.distribution.run_command(command)
          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/dist.py", line 1102, in run_command
          super().run_command(command)
          ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
        File "/tmp/pip-build-env-vp_4jxmh/overlay/lib/python3.13t/site-packages/setuptools/_distutils/dist.py", line 1021, in run_command
          cmd_obj.run()
          ~~~~~~~~~~~^^
        File "<string>", line 169, in run
        File "/root/.local/share/uv/python/cpython-3.13.3+freethreaded-linux-x86_64-gnu/lib/python3.13t/subprocess.py", line 419, in check_call
          raise CalledProcessError(retcode, cmd)
      subprocess.CalledProcessError: Command '['make']' returned non-zero exit status 2.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for pynacl
ERROR: Failed to build installable wheels for some pyproject.toml based projects (cryptography, pynacl)

ERROR: Could not install packages due to an OSError: [Errno 2] No such file or directory

  error: subprocess-exited-with-error
  
  × Building wheel for cryptography (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [21 lines of output]
      Running `maturin pep517 build-wheel -i /tmp/tmptfir4hej/venv/bin/python --compatibility off`
      📦 Including license file "/tmp/pip-install-xaldvfz6/cryptography_23de39d78fcb491ca021e8b4a6ee7652/LICENSE"
      📦 Including license file "/tmp/pip-install-xaldvfz6/cryptography_23de39d78fcb491ca021e8b4a6ee7652/LICENSE.APACHE"
      📦 Including license file "/tmp/pip-install-xaldvfz6/cryptography_23de39d78fcb491ca021e8b4a6ee7652/LICENSE.BSD"
      🍹 Building a mixed python/rust project
      🔗 Found pyo3 bindings with abi3 support
      🐍 Found CPython 3.13t at /tmp/tmptfir4hej/venv/bin/python
      📡 Using build options locked from pyproject.toml
      ⚠️ Warning: CPython 3.13t at /tmp/tmptfir4hej/venv/bin/python does not yet support abi3 so the build artifacts will be version-specific.
      warning: /tmp/pip-install-xaldvfz6/cryptography_23de39d78fcb491ca021e8b4a6ee7652/src/rust/cryptography-key-parsing/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-xaldvfz6/cryptography_23de39d78fcb491ca021e8b4a6ee7652/src/rust/cryptography-cffi/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-xaldvfz6/cryptography_23de39d78fcb491ca021e8b4a6ee7652/src/rust/cryptography-openssl/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-xaldvfz6/cryptography_23de39d78fcb491ca021e8b4a6ee7652/src/rust/Cargo.toml: unused manifest key: lints
      error: package `once_cell v1.21.3` cannot be built because it requires rustc 1.65 or newer, while the currently active rustc version is 1.63.0
      Either upgrade to rustc 1.65 or newer, or use
      cargo update -p once_cell@1.21.3 --precise ver
      where `ver` is the latest version of `once_cell` supporting rustc 1.63.0
      💥 maturin failed
        Caused by: Failed to build a native library through cargo
        Caused by: Cargo build finished with "exit status: 101": `env -u CARGO PYO3_ENVIRONMENT_SIGNATURE="cpython-3.13-64bit" PYO3_PYTHON="/tmp/tmptfir4hej/venv/bin/python" PYTHON_SYS_EXECUTABLE="/tmp/tmptfir4hej/venv/bin/python" "cargo" "rustc" "--message-format" "json-render-diagnostics" "--locked" "--manifest-path" "/tmp/pip-install-xaldvfz6/cryptography_23de39d78fcb491ca021e8b4a6ee7652/src/rust/Cargo.toml" "--release" "--lib"`
      Error: command ['maturin', 'pep517', 'build-wheel', '-i', '/tmp/tmptfir4hej/venv/bin/python', '--compatibility', 'off'] returned non-zero exit status 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for cryptography
ERROR: Failed to build installable wheels for some pyproject.toml based projects (cryptography)

  error: subprocess-exited-with-error
  
  × pip subprocess to install build dependencies did not run successfully.
  │ exit code: 1
  ╰─> [44 lines of output]
      Ignoring cffi: markers 'platform_python_implementation != "PyPy" and python_version == "3.8"' don't match your environment
      Collecting maturin<2,>=1.9.4
        Using cached maturin-1.9.6-py3-none-manylinux_2_12_x86_64.manylinux2010_x86_64.musllinux_1_1_x86_64.whl.metadata (16 kB)
      Collecting cffi>=2.0.0
        Downloading cffi-2.0.0.tar.gz (523 kB)
        Installing build dependencies: started
        Installing build dependencies: finished with status 'done'
        Getting requirements to build wheel: started
        Getting requirements to build wheel: finished with status 'error'
        error: subprocess-exited-with-error
      
        × Getting requirements to build wheel did not run successfully.
        │ exit code: 1
        ╰─> [20 lines of output]
            Traceback (most recent call last):
              File "/tmp/tmpcr734eo4/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
                main()
                ~~~~^^
              File "/tmp/tmpcr734eo4/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 373, in main
                json_out["return_val"] = hook(**hook_input["kwargs"])
                                         ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
              File "/tmp/tmpcr734eo4/venv/lib/python3.13t/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 143, in get_requires_for_build_wheel
                return hook(config_settings)
              File "/tmp/pip-build-env-cu1adbps/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 331, in get_requires_for_build_wheel
                return self._get_build_requires(config_settings, requirements=[])
                       ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
              File "/tmp/pip-build-env-cu1adbps/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 301, in _get_build_requires
                self.run_setup()
                ~~~~~~~~~~~~~~^^
              File "/tmp/pip-build-env-cu1adbps/overlay/lib/python3.13t/site-packages/setuptools/build_meta.py", line 317, in run_setup
                exec(code, locals())
                ~~~~^^^^^^^^^^^^^^^^
              File "<string>", line 22, in <module>
            RuntimeError: CFFI does not support the free-threaded build of CPython 3.13. Upgrade to free-threaded 3.14 or newer to use CFFI with the free-threaded build.
            [end of output]
      
        note: This error originates from a subprocess, and is likely not a problem with pip.
      error: subprocess-exited-with-error
      
      × Getting requirements to build wheel did not run successfully.
      │ exit code: 1
      ╰─> See above for output.
      
      note: This error originates from a subprocess, and is likely not a problem with pip.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.