Free-threaded Python Library Compatibility Checker

ERROR: Could not find a version that satisfies the requirement tf-nightly~=2.21.0.dev (from tf-keras-nightly) (from versions: none)
ERROR: No matching distribution found for tf-nightly~=2.21.0.dev

  error: subprocess-exited-with-error
  
  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [5 lines of output]
      <string>:26: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
      <string>:28: DeprecationWarning: dep_util is Deprecated. Use functions from setuptools instead.
      INFO: DD_FAST_BUILD not enabled
      rustc version 1.78 or later required, 1.63.0
       found
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'ddtrace' when getting requirements to build wheel