windows 11 convert RWKV-x070-World-2.9B-v3-2025-0211-ctx4096.pth error both with release binary and cargo run

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.\converter.exe -i C:\Users\admin\forAI\models\RWKV-x070-World-2.9B-v3-2025-0211-ctx4096.pth -o RWKV-x070-World-2.9B-v3-2025-0211-ctx4096.st

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return Error: Unexpected toplevel type

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cargo run --release --example converter -- --input "C:\Users\admin\forAI\models\RWKV-x070-World-2.9B-v3-2025-0211-ctx4096.pth" --output RWKV-x070-World-2.9B-v3-2025-0211-ctx4096.st the same error ,there is also a build error with zlib ,but can be resolved with a retry (cargo 1.84.0 msvc visual studio 2022)

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Error may happened in safetensors crate

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The converter cannot deal with pickle correctly. Please use the python script to convert the model, or download the converted model here.