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Description
Running the tests with CPython 3.14.0b1, I see these failures:
FAILED numpy/_core/tests/test_dtype.py::TestFromCTypes::test_union_with_struct_packed - DeprecationWarning: Due to '_pack_', the 'Struct' Structure will use memory lay...
FAILED numpy/_core/tests/test_dtype.py::TestFromCTypes::test_union_packed - DeprecationWarning: Due to '_pack_', the 'Struct' Structure will use memory lay...
FAILED numpy/_core/tests/test_dtype.py::TestFromCTypes::test_packed_structure - DeprecationWarning: Due to '_pack_', the 'PackedStructure' Structure will use m...
FAILED numpy/_core/tests/test_dtype.py::TestFromCTypes::test_large_packed_structure - DeprecationWarning: Due to '_pack_', the 'PackedStructure' Structure will use m...
FAILED numpy/_core/tests/test_dtype.py::TestFromCTypes::test_big_endian_structure_packed - DeprecationWarning: Due to '_pack_', the 'BigEndStruct' Structure will use memo...
FAILED numpy/_core/tests/test_dtype.py::TestFromCTypes::test_little_endian_structure_packed - DeprecationWarning: Due to '_pack_', the 'LittleEndStruct' Structure will use m...
FAILED numpy/tests/test_ctypeslib.py::TestAsCtypesType::test_structure - DeprecationWarning: Due to '_pack_', the 'struct' Structure will use memory lay...
FAILED numpy/tests/test_ctypeslib.py::TestAsCtypesType::test_structure_aligned - DeprecationWarning: Due to '_pack_', the 'struct' Structure will use memory lay...
FAILED numpy/tests/test_ctypeslib.py::TestAsCtypesType::test_union - DeprecationWarning: Due to '_pack_', the 'union' Union will use memory layout c...
FAILED numpy/tests/test_ctypeslib.py::TestAsCtypesType::test_padded_union - DeprecationWarning: Due to '_pack_', the 'union' Union will use memory layout c...
For now I'm just going to filter these warnings in the tests with a link back to this issue. Someone should investigate this and figure out why we're triggering deprecation warnings and whether we want to adjust things or give upstream some feedback.