Free-threaded Python Library Compatibility Checker

/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t -c srsly/msgpack/_unpacker.cpp -o build/temp.linux-x86_64-cpython-314t/srsly/msgpack/_unpacker.o -O2 -Wno-strict-prototypes -Wno-unused-function
      cc1plus: warning: command-line option ‘-Wno-strict-prototypes’ is valid for C/ObjC but not for C++
      srsly/msgpack/_unpacker.cpp:877:72: warning: ‘Py_UNICODE’ is deprecated [-Wdeprecated-declarations]
        877 | static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
            |                                                                        ^
      In file included from /root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t/unicodeobject.h:1018,
                       from /root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t/Python.h:81,
                       from srsly/msgpack/_unpacker.cpp:35:
      /root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t/cpython/unicodeobject.h:10:37: note: declared here
         10 | Py_DEPRECATED(3.13) typedef wchar_t Py_UNICODE;
            |                                     ^~~~~~~~~~
      srsly/msgpack/_unpacker.cpp: In function ‘size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE*)’:
      srsly/msgpack/_unpacker.cpp:878:23: warning: ‘Py_UNICODE’ is deprecated [-Wdeprecated-declarations]
        878 |     const Py_UNICODE *u_end = u;
            |                       ^~~~~
      /root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t/cpython/unicodeobject.h:10:37: note: declared here
         10 | Py_DEPRECATED(3.13) typedef wchar_t Py_UNICODE;
            |                                     ^~~~~~~~~~
      srsly/msgpack/_unpacker.cpp: In function ‘int __pyx_f_5srsly_7msgpack_9_unpacker_get_data_from_buffer(PyObject*, Py_buffer*, char**, Py_ssize_t*, int*)’:
      srsly/msgpack/_unpacker.cpp:2605:17: error: ‘PyObject_AsReadBuffer’ was not declared in this scope; did you mean ‘PyObject_GetBuffer’?
       2605 |     __pyx_t_2 = PyObject_AsReadBuffer(__pyx_v_obj, ((void const **)__pyx_v_buf), __pyx_v_buffer_len); if (unlikely(__pyx_t_2 == ((int)-1))) __PYX_ERR(0, 136, __pyx_L1_error)
            |                 ^~~~~~~~~~~~~~~~~~~~~
            |                 PyObject_GetBuffer
      srsly/msgpack/_unpacker.cpp: In function ‘long int __Pyx_PyInt_As_long(PyObject*)’:
      srsly/msgpack/_unpacker.cpp:9638:46: error: too few arguments to function ‘int _PyLong_AsByteArray(PyLongObject*, unsigned char*, size_t, int, int, int)’
       9638 |                 int ret = _PyLong_AsByteArray((PyLongObject *)v,
            |                           ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
       9639 |                                               bytes, sizeof(val),
            |                                               ~~~~~~~~~~~~~~~~~~~
       9640 |                                               is_little, !is_unsigned);
            |                                               ~~~~~~~~~~~~~~~~~~~~~~~~
      In file included from /root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t/longobject.h:119,
                       from /root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t/Python.h:83:
      /root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t/cpython/longobject.h:135:17: note: declared here
        135 | PyAPI_FUNC(int) _PyLong_AsByteArray(PyLongObject* v,
            |                 ^~~~~~~~~~~~~~~~~~~
      srsly/msgpack/_unpacker.cpp: In function ‘int __Pyx_PyInt_As_int(PyObject*)’:
      srsly/msgpack/_unpacker.cpp:9834:46: error: too few arguments to function ‘int _PyLong_AsByteArray(PyLongObject*, unsigned char*, size_t, int, int, int)’
       9834 |                 int ret = _PyLong_AsByteArray((PyLongObject *)v,
            |                           ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
       9835 |                                               bytes, sizeof(val),
            |                                               ~~~~~~~~~~~~~~~~~~~
       9836 |                                               is_little, !is_unsigned);
            |                                               ~~~~~~~~~~~~~~~~~~~~~~~~
      /root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t/cpython/longobject.h:135:17: note: declared here
        135 | PyAPI_FUNC(int) _PyLong_AsByteArray(PyLongObject* v,
            |                 ^~~~~~~~~~~~~~~~~~~
      error: command '/usr/bin/c++' 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 srsly
ERROR: Failed to build installable wheels for some pyproject.toml based projects (pydantic-core, srsly)

ERROR: Could not find a version that satisfies the requirement pywin32==310 (from versions: none)
ERROR: No matching distribution found for pywin32==310

01": `env -u CARGO PYO3_ENVIRONMENT_SIGNATURE="cpython-3.14-64bit" PYO3_PYTHON="/tmp/tmpdqw0ztdl/venv/bin/python" PYTHON_SYS_EXECUTABLE="/tmp/tmpdqw0ztdl/venv/bin/python" "cargo" "rustc" "--message-format" "json-render-diagnostics" "--manifest-path" "/tmp/pip-install-lfoklw9v/orjson_ab7fdc58d77f4207b81f0f97f2d6d6ea/Cargo.toml" "--release" "--lib"`
      Error: command ['maturin', 'pep517', 'build-wheel', '-i', '/tmp/tmpdqw0ztdl/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 orjson
  error: subprocess-exited-with-error
  
  × Building wheel for pydantic-core (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [15 lines of output]
      Running `maturin pep517 build-wheel -i /tmp/tmpdqw0ztdl/venv/bin/python --compatibility off`
      📦 Including license file "/tmp/pip-install-lfoklw9v/pydantic-core_dc5a878e182146acbcc3de42758e593f/LICENSE"
      🍹 Building a mixed python/rust project
      🔗 Found pyo3 bindings
      🐍 Found CPython 3.14t at /tmp/tmpdqw0ztdl/venv/bin/python
      📡 Using build options features, bindings from pyproject.toml
      warning: unused manifest key: lints
      error: package `icu_provider v1.5.0` cannot be built because it requires rustc 1.67 or newer, while the currently active rustc version is 1.63.0
      Either upgrade to rustc 1.67 or newer, or use
      cargo update -p icu_provider@1.5.0 --precise ver
      where `ver` is the latest version of `icu_provider` 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-3.14-64bit" PYO3_PYTHON="/tmp/tmpdqw0ztdl/venv/bin/python" PYTHON_SYS_EXECUTABLE="/tmp/tmpdqw0ztdl/venv/bin/python" "cargo" "rustc" "--features" "pyo3/extension-module" "--message-format" "json-render-diagnostics" "--manifest-path" "/tmp/pip-install-lfoklw9v/pydantic-core_dc5a878e182146acbcc3de42758e593f/Cargo.toml" "--release" "--lib"`
      Error: command ['maturin', 'pep517', 'build-wheel', '-i', '/tmp/tmpdqw0ztdl/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 pydantic-core
  error: subprocess-exited-with-error
  
  × Building wheel for zstandard (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [25 lines of output]
      <string>:41: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
      <string>:42: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
      <frozen importlib._bootstrap>:491: RuntimeWarning: The global interpreter lock (GIL) has been enabled to load module '_cffi_backend', which has not declared that it can run safely without the GIL. To override this behavior and keep the GIL disabled (at your own risk), run with PYTHON_GIL=0 or -Xgil=0.
      generating build/zstandard/_cffi.c
      (already up-to-date)
      not modified: 'build/zstandard/_cffi.c'
      running bdist_wheel
      running build
      running build_py
      creating build/lib.linux-x86_64-cpython-314
      creating build/lib.linux-x86_64-cpython-314/zstandard
      copying zstandard/__init__.py -> build/lib.linux-x86_64-cpython-314/zstandard
      copying zstandard/backend_cffi.py -> build/lib.linux-x86_64-cpython-314/zstandard
      copying zstandard/__init__.pyi -> build/lib.linux-x86_64-cpython-314/zstandard
      copying zstandard/py.typed -> build/lib.linux-x86_64-cpython-314/zstandard
      running build_ext
      building 'zstandard.backend_c' extension
      creating build/temp.linux-x86_64-cpython-314
      creating build/temp.linux-x86_64-cpython-314/c-ext
      cc -pthread -fno-strict-overflow -Wsign-compare -Wunreachable-code -DNDEBUG -g -O3 -Wall -fPIC -fPIC -Ic-ext -Izstd -I/tmp/tmpdqw0ztdl/venv/include -I/root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/include/python3.14t -c c-ext/backend_c.c -o build/temp.linux-x86_64-cpython-314/c-ext/backend_c.o -DZSTD_SINGLE_FILE -DZSTDLIB_VISIBLE= -DZDICTLIB_VISIBLE= -DZSTDERRORLIB_VISIBLE= -fvisibility=hidden
      c-ext/backend_c.c: In function ‘safe_pybytes_resize’:
      c-ext/backend_c.c:316:15: error: ‘PyObject’ {aka ‘struct _object’} has no member named ‘ob_refcnt’
        316 |     if ((*obj)->ob_refcnt == 1) {
            |               ^~
      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 zstandard
ERROR: Failed to build installable wheels for some pyproject.toml based projects (orjson, pydantic-core, zstandard)

  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/tmp63xaeaeq/venv/bin/python --compatibility off`
      📦 Including license file "/tmp/pip-install-vtozx_u4/cryptography_f15918a9fd8240e89e3a0f81b8ea7f19/LICENSE"
      📦 Including license file "/tmp/pip-install-vtozx_u4/cryptography_f15918a9fd8240e89e3a0f81b8ea7f19/LICENSE.APACHE"
      📦 Including license file "/tmp/pip-install-vtozx_u4/cryptography_f15918a9fd8240e89e3a0f81b8ea7f19/LICENSE.BSD"
      🍹 Building a mixed python/rust project
      🔗 Found pyo3 bindings with abi3 support
      🐍 Found CPython 3.14t at /tmp/tmp63xaeaeq/venv/bin/python
      📡 Using build options locked from pyproject.toml
      ⚠️ Warning: CPython 3.14t at /tmp/tmp63xaeaeq/venv/bin/python does not yet support abi3 so the build artifacts will be version-specific.
      warning: /tmp/pip-install-vtozx_u4/cryptography_f15918a9fd8240e89e3a0f81b8ea7f19/src/rust/cryptography-key-parsing/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-vtozx_u4/cryptography_f15918a9fd8240e89e3a0f81b8ea7f19/src/rust/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-vtozx_u4/cryptography_f15918a9fd8240e89e3a0f81b8ea7f19/src/rust/cryptography-cffi/Cargo.toml: unused manifest key: lints
      warning: /tmp/pip-install-vtozx_u4/cryptography_f15918a9fd8240e89e3a0f81b8ea7f19/src/rust/cryptography-openssl/Cargo.toml: unused manifest key: lints
      error: package `cryptography-key-parsing v0.1.0 (/tmp/pip-install-vtozx_u4/cryptography_f15918a9fd8240e89e3a0f81b8ea7f19/src/rust/cryptography-key-parsing)` 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/tmp63xaeaeq/venv/bin/python" PYTHON_SYS_EXECUTABLE="/tmp/tmp63xaeaeq/venv/bin/python" "cargo" "rustc" "--message-format" "json-render-diagnostics" "--locked" "--manifest-path" "/tmp/pip-install-vtozx_u4/cryptography_f15918a9fd8240e89e3a0f81b8ea7f19/src/rust/Cargo.toml" "--release" "--lib"`
      Error: command ['maturin', 'pep517', 'build-wheel', '-i', '/tmp/tmp63xaeaeq/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)