Build fails with Cython 3.0.0b1

[mgorny]

After installing Cython==3.0.0b1, I get the following build error:

$ python setup.py build
Please make sure to:
- Have libglyr >= 1.0.0 and all developement deps installed.
- Have a working compiler.

Cython will be installed automatically.

Compiling src/glyr.pyx because it changed.
[1/1] Cythonizing src/glyr.pyx
/tmp/python-glyr/.venv/lib/python3.11/site-packages/Cython/Compiler/Main.py:370: FutureWarning: Cython directive 'language_level' not set, using '3str' for now (Py3). This has changed from earlier releases! File: /tmp/python-glyr/src/glyr.pyx
  tree = Parsing.p_module(s, pxd, full_module_name)

Error compiling Cython file:
------------------------------------------------------------
...

# Initialize Library
glyr_init()

# Register destroyage using the C-level atexit
atexit(<void (*)() nogil>glyr_cleanup)
       ^
------------------------------------------------------------

src/glyr.pyx:28:7: Cannot assign type 'void (*)(void) except * nogil' to 'void (*)(void) noexcept nogil'

Error compiling Cython file:
------------------------------------------------------------
...
        :py_func: A callable object, like a function.
        """
        self_ptr = self._ptr()

        with nogil:
            C.glyr_db_foreach(self_ptr, _db_proxy_callback, <void*>py_func)
                                        ^
------------------------------------------------------------

src/database.pyx:144:40: Cannot assign type 'int (GlyrQuery *, GlyrMemCache *, void *) except? -1 nogil' to 'glyr_foreach_callback'
Traceback (most recent call last):
  File "/tmp/python-glyr/setup.py", line 15, in <module>
    setup(
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/_distutils/core.py", line 185, in setup
    return run_commands(dist)
           ^^^^^^^^^^^^^^^^^^
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/_distutils/core.py", line 201, in run_commands
    dist.run_commands()
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/_distutils/dist.py", line 969, in run_commands
    self.run_command(cmd)
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/dist.py", line 1221, in run_command
    super().run_command(command)
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/_distutils/dist.py", line 988, in run_command
    cmd_obj.run()
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/_distutils/command/build.py", line 131, in run
    self.run_command(cmd_name)
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/_distutils/cmd.py", line 318, in run_command
    self.distribution.run_command(command)
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/dist.py", line 1221, in run_command
    super().run_command(command)
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/_distutils/dist.py", line 988, in run_command
    cmd_obj.run()
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/_distutils/command/build_ext.py", line 345, in run
    self.build_extensions()
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/_distutils/command/build_ext.py", line 467, in build_extensions
    self._build_extensions_serial()
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/setuptools/_distutils/command/build_ext.py", line 493, in _build_extensions_serial
    self.build_extension(ext)
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/Cython/Distutils/build_ext.py", line 122, in build_extension
    new_ext = cythonize(
              ^^^^^^^^^^
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/Cython/Build/Dependencies.py", line 1134, in cythonize
    cythonize_one(*args)
  File "/tmp/python-glyr/.venv/lib/python3.11/site-packages/Cython/Build/Dependencies.py", line 1301, in cythonize_one
    raise CompileError(None, pyx_file)
Cython.Compiler.Errors.CompileError: src/glyr.pyx