Warning: You are sending unauthenticated requests to the HF Hub. Please set a HF_TOKEN to enable higher rate limits and faster downloads. [train-β] config: configs/phase2_beta_qwen1.5b.yaml [train-β] unified dir: phase2_data/unified [train-β] excluding sources: ('liararg',) [unified] loaded 2450 records across 4 source(s): abstrct: 700 cdcp: 731 microtext: 112 perspectrum: 907 [train-β] split distribution: {'test': 688, 'train': 1494, 'val': 268} [train-β] building student: hf (Qwen/Qwen2.5-0.5B-Instruct) [student:hf] base_model=Qwen/Qwen2.5-0.5B-Instruct (seq2seq=False) Loading weights: 0%| | 0/290 [00:00