Free-threaded Python Library Compatibility Checker

81bf /tmp/pip-install-4pyvmgl4/scipy_f6ef59493c11408e81ae44d1ff4881bf/.mesonpy-7avft634 -Dbuildtype=release -Db_ndebug=if-release -Db_vscrt=md --native-file=/tmp/pip-install-4pyvmgl4/scipy_f6ef59493c11408e81ae44d1ff4881bf/.mesonpy-7avft634/meson-python-native-file.ini
            The Meson build system
            Version: 1.8.2
            Source dir: /tmp/pip-install-4pyvmgl4/scipy_f6ef59493c11408e81ae44d1ff4881bf
            Build dir: /tmp/pip-install-4pyvmgl4/scipy_f6ef59493c11408e81ae44d1ff4881bf/.mesonpy-7avft634
            Build type: native build
            Project name: scipy
            Project version: 1.15.3
            C compiler for the host machine: cc (gcc 12.2.0 "cc (Debian 12.2.0-14+deb12u1) 12.2.0")
            C linker for the host machine: cc ld.bfd 2.40
            C++ compiler for the host machine: c++ (gcc 12.2.0 "c++ (Debian 12.2.0-14+deb12u1) 12.2.0")
            C++ linker for the host machine: c++ ld.bfd 2.40
            Cython compiler for the host machine: cython (cython 3.0.12)
            Host machine cpu family: x86_64
            Host machine cpu: x86_64
            Program python found: YES (/tmp/tmp8_sgviq4/venv/bin/python)
            Did not find pkg-config by name 'pkg-config'
            Found pkg-config: NO
            Run-time dependency python found: YES 3.14
            Program cython found: YES (/tmp/pip-build-env-tsesj0hi/overlay/bin/cython)
            Compiler for C supports arguments -Wno-unused-but-set-variable: YES
            Compiler for C supports arguments -Wno-unused-function: YES
            Compiler for C supports arguments -Wno-conversion: YES
            Compiler for C supports arguments -Wno-misleading-indentation: YES
            Library m found: YES
      
            ../meson.build:80:0: ERROR: Unknown compiler(s): [['gfortran'], ['flang-new'], ['flang'], ['nvfortran'], ['pgfortran'], ['ifort'], ['ifx'], ['g95']]
            The following exception(s) were encountered:
            Running `gfortran --help` gave "[Errno 2] No such file or directory: 'gfortran'"
            Running `gfortran --version` gave "[Errno 2] No such file or directory: 'gfortran'"
            Running `gfortran -V` gave "[Errno 2] No such file or directory: 'gfortran'"
            Running `flang-new --help` gave "[Errno 2] No such file or directory: 'flang-new'"
            Running `flang-new --version` gave "[Errno 2] No such file or directory: 'flang-new'"
            Running `flang-new -V` gave "[Errno 2] No such file or directory: 'flang-new'"
            Running `flang --help` gave "[Errno 2] No such file or directory: 'flang'"
            Running `flang --version` gave "[Errno 2] No such file or directory: 'flang'"
            Running `flang -V` gave "[Errno 2] No such file or directory: 'flang'"
            Running `nvfortran --help` gave "[Errno 2] No such file or directory: 'nvfortran'"
            Running `nvfortran --version` gave "[Errno 2] No such file or directory: 'nvfortran'"
            Running `nvfortran -V` gave "[Errno 2] No such file or directory: 'nvfortran'"
            Running `pgfortran --help` gave "[Errno 2] No such file or directory: 'pgfortran'"
            Running `pgfortran --version` gave "[Errno 2] No such file or directory: 'pgfortran'"
            Running `pgfortran -V` gave "[Errno 2] No such file or directory: 'pgfortran'"
            Running `ifort --help` gave "[Errno 2] No such file or directory: 'ifort'"
            Running `ifort --version` gave "[Errno 2] No such file or directory: 'ifort'"
            Running `ifort -V` gave "[Errno 2] No such file or directory: 'ifort'"
            Running `ifx --help` gave "[Errno 2] No such file or directory: 'ifx'"
            Running `ifx --version` gave "[Errno 2] No such file or directory: 'ifx'"
            Running `ifx -V` gave "[Errno 2] No such file or directory: 'ifx'"
            Running `g95 --help` gave "[Errno 2] No such file or directory: 'g95'"
            Running `g95 --version` gave "[Errno 2] No such file or directory: 'g95'"
            Running `g95 -V` gave "[Errno 2] No such file or directory: 'g95'"
      
            A full log can be found at /tmp/pip-install-4pyvmgl4/scipy_f6ef59493c11408e81ae44d1ff4881bf/.mesonpy-7avft634/meson-logs/meson-log.txt
            [end of output]
      
        note: This error originates from a subprocess, and is likely not a problem with pip.
      error: metadata-generation-failed
      
      × Encountered error while generating package metadata.
      ╰─> See above for output.
      
      note: This is an issue with the package mentioned above, not pip.
      hint: See above for details.
      [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.

  error: subprocess-exited-with-error
  
  × Preparing metadata (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [10 lines of output]
      Checking for Rust toolchain....
      Running `maturin pep517 write-dist-info --metadata-directory /tmp/pip-modern-metadata-ibrxb27a --interpreter /tmp/tmpjkltpzps/venv/bin/python`
      error: failed to parse lock file at: /tmp/pip-install-z4hk4g23/rpds-py_1fb359a2acde422088623cf6675e8f39/Cargo.lock
      
      Caused by:
        lock file version `4` was found, but this version of Cargo does not understand this lock file, perhaps Cargo needs to be updated?
      💥 maturin failed
        Caused by: Cargo metadata failed. Does your crate compile with `cargo build`?
        Caused by: `cargo metadata` exited with an error:
      Error running maturin: Command '['maturin', 'pep517', 'write-dist-info', '--metadata-directory', '/tmp/pip-modern-metadata-ibrxb27a', '--interpreter', '/tmp/tmpjkltpzps/venv/bin/python']' 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: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

  error: subprocess-exited-with-error
  
  × pip subprocess to install build dependencies did not run successfully.
  │ exit code: 1
  ╰─> [11 lines of output]
      Traceback (most recent call last):
        File "/tmp/tmp7xa09ngb/venv/lib/python3.14t/site-packages/pip/__pip-runner__.py", line 50, in <module>
          runpy.run_module("pip", run_name="__main__", alter_sys=True)
          ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "<frozen runpy>", line 226, in run_module
        File "<frozen runpy>", line 98, in _run_module_code
        File "<frozen runpy>", line 88, in _run_code
        File "/tmp/tmp7xa09ngb/venv/lib/python3.14t/site-packages/pip/__main__.py", line 8, in <module>
          if sys.path[0] in ("", os.getcwd()):
                                 ~~~~~~~~~^^
      FileNotFoundError: [Errno 2] No such file or directory
      [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.

  error: subprocess-exited-with-error
  
  × Building wheel for tiktoken (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [62 lines of output]
      /tmp/pip-build-env-b2c4ygvv/overlay/lib/python3.14t/site-packages/setuptools/config/_apply_pyprojecttoml.py:82: SetuptoolsDeprecationWarning: `project.license` as a TOML table is deprecated
      !!
      
              ********************************************************************************
              Please use a simple string containing a SPDX expression for `project.license`. You can also use `project.license-files`. (Both options available on setuptools>=77.0.0).
      
              By 2026-Feb-18, you need to update your project and remove deprecated calls
              or your builds will no longer be supported.
      
              See https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license for details.
              ********************************************************************************
      
      !!
        corresp(dist, value, root_dir)
      running bdist_wheel
      running build
      running build_py
      creating build/lib.linux-x86_64-cpython-314t/tiktoken
      copying tiktoken/__init__.py -> build/lib.linux-x86_64-cpython-314t/tiktoken
      copying tiktoken/_educational.py -> build/lib.linux-x86_64-cpython-314t/tiktoken
      copying tiktoken/core.py -> build/lib.linux-x86_64-cpython-314t/tiktoken
      copying tiktoken/load.py -> build/lib.linux-x86_64-cpython-314t/tiktoken
      copying tiktoken/model.py -> build/lib.linux-x86_64-cpython-314t/tiktoken
      copying tiktoken/registry.py -> build/lib.linux-x86_64-cpython-314t/tiktoken
      creating build/lib.linux-x86_64-cpython-314t/tiktoken_ext
      copying tiktoken_ext/openai_public.py -> build/lib.linux-x86_64-cpython-314t/tiktoken_ext
      running egg_info
      writing tiktoken.egg-info/PKG-INFO
      writing dependency_links to tiktoken.egg-info/dependency_links.txt
      writing requirements to tiktoken.egg-info/requires.txt
      writing top-level names to tiktoken.egg-info/top_level.txt
      reading manifest file 'tiktoken.egg-info/SOURCES.txt'
      reading manifest template 'MANIFEST.in'
      warning: no files found matching 'Makefile'
      adding license file 'LICENSE'
      writing manifest file 'tiktoken.egg-info/SOURCES.txt'
      copying tiktoken/py.typed -> build/lib.linux-x86_64-cpython-314t/tiktoken
      running build_ext
      running build_rust
          Updating crates.io index
       Downloading crates ...
        Downloaded fancy-regex v0.13.0
        Downloaded bit-set v0.5.3
        Downloaded rustc-hash v1.1.0
        Downloaded bit-vec v0.6.3
        Downloaded serde_derive v1.0.219
        Downloaded serde v1.0.219
        Downloaded bstr v1.12.0
        Downloaded regex-automata v0.4.9
      cargo rustc --lib --message-format=json-render-diagnostics --manifest-path Cargo.toml --release -v --features python pyo3/extension-module -- --crate-type cdylib
       Downloading crates ...
        Downloaded target-lexicon v0.12.16
        Downloaded pyo3-macros-backend v0.22.6
        Downloaded pyo3-macros v0.22.6
        Downloaded pyo3-ffi v0.22.6
        Downloaded pyo3-build-config v0.22.6
        Downloaded pyo3 v0.22.6
      error: package `fancy-regex v0.13.0` cannot be built because it requires rustc 1.66 or newer, while the currently active rustc version is 1.63.0
      Either upgrade to rustc 1.66 or newer, or use
      cargo update -p fancy-regex@0.13.0 --precise ver
      where `ver` is the latest version of `fancy-regex` supporting rustc 1.63.0
      error: `cargo rustc --lib --message-format=json-render-diagnostics --manifest-path Cargo.toml --release -v --features 'python pyo3/extension-module' -- --crate-type cdylib` failed with code 101
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for tiktoken
ERROR: Failed to build installable wheels for some pyproject.toml based projects (tiktoken)

kages/setuptools/_distutils/spawn.py", line 93, in spawn
          raise DistutilsExecError(
              f"command {_debug(cmd)!r} failed with exit code {err.returncode}"
          ) from err
      distutils.errors.DistutilsExecError: command '/usr/bin/c++' failed with exit code 1
      
      During handling of the above exception, another exception occurred:
      
      Traceback (most recent call last):
        File "/tmp/pip-install-jfs8meov/grpcio_979c7730111e490aa7243888f25cc8ac/src/python/grpcio/commands.py", line 282, in build_extensions
          build_ext.build_ext.build_extensions(self)
          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
        File "/tmp/pip-build-env-b5bs1t_8/overlay/lib/python3.14t/site-packages/setuptools/_distutils/command/build_ext.py", line 484, in build_extensions
          self._build_extensions_serial()
          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
        File "/tmp/pip-build-env-b5bs1t_8/overlay/lib/python3.14t/site-packages/setuptools/_distutils/command/build_ext.py", line 510, in _build_extensions_serial
          self.build_extension(ext)
          ~~~~~~~~~~~~~~~~~~~~^^^^^
        File "/tmp/pip-build-env-b5bs1t_8/overlay/lib/python3.14t/site-packages/setuptools/command/build_ext.py", line 261, in build_extension
          _build_ext.build_extension(self, ext)
          ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
        File "/tmp/pip-build-env-b5bs1t_8/overlay/lib/python3.14t/site-packages/setuptools/_distutils/command/build_ext.py", line 565, in build_extension
          objects = self.compiler.compile(
              sources,
          ...<5 lines>...
              depends=ext.depends,
          )
        File "/tmp/pip-install-jfs8meov/grpcio_979c7730111e490aa7243888f25cc8ac/src/python/grpcio/_parallel_compile_patch.py", line 70, in _parallel_compile
          multiprocessing.pool.ThreadPool(BUILD_EXT_COMPILER_JOBS).map(
          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
              _compile_single_file, objects
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
          )
          ^
        File "/root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/lib/python3.14t/multiprocessing/pool.py", line 367, in map
          return self._map_async(func, iterable, mapstar, chunksize).get()
                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
        File "/root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/lib/python3.14t/multiprocessing/pool.py", line 774, in get
          raise self._value
        File "/root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/lib/python3.14t/multiprocessing/pool.py", line 125, in worker
          result = (True, func(*args, **kwds))
                          ~~~~^^^^^^^^^^^^^^^
        File "/root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/lib/python3.14t/multiprocessing/pool.py", line 48, in mapstar
          return list(map(*args))
        File "/tmp/pip-install-jfs8meov/grpcio_979c7730111e490aa7243888f25cc8ac/src/python/grpcio/_parallel_compile_patch.py", line 65, in _compile_single_file
          self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
          ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/tmp/pip-install-jfs8meov/grpcio_979c7730111e490aa7243888f25cc8ac/src/python/grpcio/commands.py", line 264, in new_compile
          return old_compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
        File "/tmp/pip-build-env-b5bs1t_8/overlay/lib/python3.14t/site-packages/setuptools/_distutils/compilers/C/unix.py", line 223, in _compile
          raise CompileError(msg)
      distutils.compilers.C.errors.CompileError: command '/usr/bin/c++' failed with exit code 1
      
      Exception ignored while calling deallocator <function Pool.__del__ at 0x40fea03bac0>:
      Traceback (most recent call last):
        File "/root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/lib/python3.14t/multiprocessing/pool.py", line 271, in __del__
        File "/root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/lib/python3.14t/multiprocessing/queues.py", line 397, in put
        File "/root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/lib/python3.14t/multiprocessing/connection.py", line 206, in send_bytes
        File "/root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/lib/python3.14t/multiprocessing/connection.py", line 444, in _send_bytes
        File "/root/.local/share/uv/python/cpython-3.14.0a7+freethreaded-linux-x86_64-gnu/lib/python3.14t/multiprocessing/connection.py", line 400, in _send
      BrokenPipeError: [Errno 32] Broken pipe
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for grpcio
ERROR: Failed to build installable wheels for some pyproject.toml based projects (grpcio)