Free-threaded Python Library Compatibility Checker

  error: subprocess-exited-with-error
  
  × Building wheel for cryptography (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [19 lines of output]
      Running `maturin pep517 build-wheel -i /tmp/tmp4wxdwakp/venv/bin/python --compatibility off`
      📦 Including license file "/tmp/pip-install-ma4jk658/cryptography_22c0d1ee837a477b9052fe536e1cfd4f/LICENSE"
      📦 Including license file "/tmp/pip-install-ma4jk658/cryptography_22c0d1ee837a477b9052fe536e1cfd4f/LICENSE.APACHE"
      📦 Including license file "/tmp/pip-install-ma4jk658/cryptography_22c0d1ee837a477b9052fe536e1cfd4f/LICENSE.BSD"
      🍹 Building a mixed python/rust project
      🔗 Found pyo3 bindings with abi3 support
      🐍 Found CPython 3.14t at /tmp/tmp4wxdwakp/venv/bin/python
      📡 Using build options locked from pyproject.toml
      ⚠️ Warning: CPython 3.14t at /tmp/tmp4wxdwakp/venv/bin/python does not yet support abi3 so the build artifacts will be version-specific.
      warning: /tmp/pip-install-ma4jk658/cryptography_22c0d1ee837a477b9052fe536e1cfd4f/src/rust/cryptography-cffi/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-ma4jk658/cryptography_22c0d1ee837a477b9052fe536e1cfd4f/src/rust/cryptography-openssl/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-ma4jk658/cryptography_22c0d1ee837a477b9052fe536e1cfd4f/src/rust/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-ma4jk658/cryptography_22c0d1ee837a477b9052fe536e1cfd4f/src/rust/cryptography-key-parsing/Cargo.toml: unused manifest key: lints
      error: package `cryptography-cffi v0.1.0 (/tmp/pip-install-ma4jk658/cryptography_22c0d1ee837a477b9052fe536e1cfd4f/src/rust/cryptography-cffi)` cannot be built because it requires rustc 1.74.0 or newer, while the currently active rustc version is 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-3.14-64bit" PYO3_PYTHON="/tmp/tmp4wxdwakp/venv/bin/python" PYTHON_SYS_EXECUTABLE="/tmp/tmp4wxdwakp/venv/bin/python" "cargo" "rustc" "--message-format" "json-render-diagnostics" "--locked" "--manifest-path" "/tmp/pip-install-ma4jk658/cryptography_22c0d1ee837a477b9052fe536e1cfd4f/src/rust/Cargo.toml" "--release" "--lib"`
      Error: command ['maturin', 'pep517', 'build-wheel', '-i', '/tmp/tmp4wxdwakp/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)

te: declared here
         13 | Py_DEPRECATED(3.12) PyAPI_DATA(int) Py_OptimizeFlag;
            |                                     ^~~~~~~~~~~~~~~
      uvloop/loop.c: In function ‘__pyx_pf_6uvloop_4loop_11SSLProtocol_20resume_writing’:
      uvloop/loop.c:166099:3: warning: ‘Py_OptimizeFlag’ is deprecated [-Wdeprecated-declarations]
      166099 |   if (unlikely(__pyx_assertions_enabled())) {
             |   ^~
      /root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t/cpython/pydebug.h:13:37: note: declared here
         13 | Py_DEPRECATED(3.12) PyAPI_DATA(int) Py_OptimizeFlag;
            |                                     ^~~~~~~~~~~~~~~
      uvloop/loop.c: In function ‘__pyx_f_6uvloop_4loop_6Server__attach’:
      uvloop/loop.c:172171:3: warning: ‘Py_OptimizeFlag’ is deprecated [-Wdeprecated-declarations]
      172171 |   if (unlikely(__pyx_assertions_enabled())) {
             |   ^~
      /root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t/cpython/pydebug.h:13:37: note: declared here
         13 | Py_DEPRECATED(3.12) PyAPI_DATA(int) Py_OptimizeFlag;
            |                                     ^~~~~~~~~~~~~~~
      uvloop/loop.c: In function ‘__pyx_f_6uvloop_4loop_6Server__detach’:
      uvloop/loop.c:172238:3: warning: ‘Py_OptimizeFlag’ is deprecated [-Wdeprecated-declarations]
      172238 |   if (unlikely(__pyx_assertions_enabled())) {
             |   ^~
      /root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t/cpython/pydebug.h:13:37: note: declared here
         13 | Py_DEPRECATED(3.12) PyAPI_DATA(int) Py_OptimizeFlag;
            |                                     ^~~~~~~~~~~~~~~
      uvloop/loop.c: At top level:
      uvloop/loop.c:207203:69: error: unknown type name ‘__pyx_vectorcallfunc’; did you mean ‘vectorcallfunc’?
      207203 | static PyObject *__Pyx_PyVectorcall_FastCallDict_kw(PyObject *func, __pyx_vectorcallfunc vc, PyObject *const *args, size_t nargs, PyObject *kw)
             |                                                                     ^~~~~~~~~~~~~~~~~~~~
             |                                                                     vectorcallfunc
      uvloop/loop.c:207248:80: error: unknown type name ‘__pyx_vectorcallfunc’; did you mean ‘vectorcallfunc’?
      207248 | static CYTHON_INLINE PyObject *__Pyx_PyVectorcall_FastCallDict(PyObject *func, __pyx_vectorcallfunc vc, PyObject *const *args, size_t nargs, PyObject *kw)
             |                                                                                ^~~~~~~~~~~~~~~~~~~~
             |                                                                                vectorcallfunc
      uvloop/loop.c: In function ‘__Pyx_CyFunction_CallAsMethod’:
      uvloop/loop.c:207937:6: error: unknown type name ‘__pyx_vectorcallfunc’; did you mean ‘vectorcallfunc’?
      207937 |      __pyx_vectorcallfunc vc = __Pyx_CyFunction_func_vectorcall(cyfunc);
             |      ^~~~~~~~~~~~~~~~~~~~
             |      vectorcallfunc
      uvloop/loop.c:4627:45: warning: initialization of ‘int’ from ‘vectorcallfunc’ {aka ‘struct _object * (*)(struct _object *, struct _object * const*, long unsigned int,  struct _object *)’} makes integer from pointer without a cast [-Wint-conversion]
       4627 | #define __Pyx_CyFunction_func_vectorcall(f) (((PyCFunctionObject*)f)->vectorcall)
            |                                             ^
      uvloop/loop.c:207937:32: note: in expansion of macro ‘__Pyx_CyFunction_func_vectorcall’
      207937 |      __pyx_vectorcallfunc vc = __Pyx_CyFunction_func_vectorcall(cyfunc);
             |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      uvloop/loop.c:207940:16: warning: implicit declaration of function ‘__Pyx_PyVectorcall_FastCallDict’; did you mean ‘__Pyx_PyObject_FastCallDict’? [-Wimplicit-function-declaration]
      207940 |         return __Pyx_PyVectorcall_FastCallDict(func, vc, &PyTuple_GET_ITEM(args, 0), (size_t)PyTuple_GET_SIZE(args), kw);
             |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
             |                __Pyx_PyObject_FastCallDict
      uvloop/loop.c:207940:16: warning: returning ‘int’ from a function with return type ‘PyObject *’ {aka ‘struct _object *’} makes pointer from integer without a cast [-Wint-conversion]
      207940 |         return __Pyx_PyVectorcall_FastCallDict(func, vc, &PyTuple_GET_ITEM(args, 0), (size_t)PyTuple_GET_SIZE(args), kw);
             |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      error: command '/usr/bin/cc' failed with exit code 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for uvloop
ERROR: Failed to build installable wheels for some pyproject.toml based projects (uvloop)