[2026-05-18T07:24:32+0200] benchmark start; candidates=sbert/dunzhang/stella_en_400M_v5
[2026-05-18T07:24:32+0200] candidate start: sbert/dunzhang/stella_en_400M_v5
[2026-05-18T07:24:32+0200] pre-pull start: sbert/dunzhang/stella_en_400M_v5
[transformers] A new version of the following files was downloaded from https://huggingface.co/dunzhang/stella_en_400M_v5:
- configuration.py
. Make sure to double-check they do not contain any added malicious code. To avoid downloading new versions of the code file, you can pin a revision.
[transformers] A new version of the following files was downloaded from https://huggingface.co/dunzhang/stella_en_400M_v5:
- modeling.py
. Make sure to double-check they do not contain any added malicious code. To avoid downloading new versions of the code file, you can pin a revision.
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/skills/mcp-coco-index/mcp_server/.venv/lib/python3.11/site-packages/sentence_transformers/util/decorators.py", line 41, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/skills/mcp-coco-index/mcp_server/.venv/lib/python3.11/site-packages/sentence_transformers/sentence_transformer/model.py", line 183, in __init__
    super().__init__(
  File "/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/skills/mcp-coco-index/mcp_server/.venv/lib/python3.11/site-packages/sentence_transformers/base/model.py", line 198, in __init__
    modules, self.module_kwargs = self._load_modules(
                                  ^^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/skills/mcp-coco-index/mcp_server/.venv/lib/python3.11/site-packages/sentence_transformers/base/model.py", line 974, in _load_modules
    return self._load_config_modules(model_name_or_path, **load_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/skills/mcp-coco-index/mcp_server/.venv/lib/python3.11/site-packages/sentence_transformers/base/model.py", line 1165, in _load_config_modules
    module = module_class.load(
             ^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/skills/mcp-coco-index/mcp_server/.venv/lib/python3.11/site-packages/sentence_transformers/base/modules/transformer.py", line 1708, in load
    return cls(model_name_or_path=model_name_or_path, **init_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/skills/mcp-coco-index/mcp_server/.venv/lib/python3.11/site-packages/sentence_transformers/util/decorators.py", line 87, in wrapper
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/skills/mcp-coco-index/mcp_server/.venv/lib/python3.11/site-packages/sentence_transformers/base/modules/transformer.py", line 642, in __init__
    self.model = self._load_model(
                 ^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/skills/mcp-coco-index/mcp_server/.venv/lib/python3.11/site-packages/sentence_transformers/base/modules/transformer.py", line 1414, in _load_model
    return model_cls.from_pretrained(model_name_or_path, config=config, **model_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/skills/mcp-coco-index/mcp_server/.venv/lib/python3.11/site-packages/transformers/models/auto/auto_factory.py", line 390, in from_pretrained
    return model_class.from_pretrained(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/skills/mcp-coco-index/mcp_server/.venv/lib/python3.11/site-packages/transformers/modeling_utils.py", line 4201, in from_pretrained
    model = cls(config, *model_args, **model_kwargs)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/.cache/huggingface/modules/transformers_modules/dunzhang/stella_en_400M_v5/ffeb2b7ee715c226d4ffe5e4619f7dbb48624c20/modeling.py", line 823, in __init__
    self.encoder = NewEncoder(config)
                   ^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/.cache/huggingface/modules/transformers_modules/dunzhang/stella_en_400M_v5/ffeb2b7ee715c226d4ffe5e4619f7dbb48624c20/modeling.py", line 696, in __init__
    self.layer = nn.ModuleList([NewLayer(config) for _ in range(config.num_hidden_layers)])
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/.cache/huggingface/modules/transformers_modules/dunzhang/stella_en_400M_v5/ffeb2b7ee715c226d4ffe5e4619f7dbb48624c20/modeling.py", line 696, in <listcomp>
    self.layer = nn.ModuleList([NewLayer(config) for _ in range(config.num_hidden_layers)])
                                ^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/.cache/huggingface/modules/transformers_modules/dunzhang/stella_en_400M_v5/ffeb2b7ee715c226d4ffe5e4619f7dbb48624c20/modeling.py", line 630, in __init__
    self.attention = NEW_ATTENTION_CLASSES[attn_implementation](
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/michelkerkmeester/.cache/huggingface/modules/transformers_modules/dunzhang/stella_en_400M_v5/ffeb2b7ee715c226d4ffe5e4619f7dbb48624c20/modeling.py", line 451, in __init__
    assert self.memory_efficient_attention is not None, 'please install xformers'
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: please install xformers
[2026-05-18T07:24:55+0200] pre-pull done: sbert/dunzhang/stella_en_400M_v5
[2026-05-18T07:24:55+0200] reset: sbert/dunzhang/stella_en_400M_v5
The following files will be deleted:
  /Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.cocoindex_code/cocoindex.db
  /Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.cocoindex_code/target_sqlite.db
Databases deleted.
Settings file still exists. Run `ccc reset --all` to remove it too,
or edit it manually.
[2026-05-18T07:24:55+0200] index start: sbert/dunzhang/stella_en_400M_v5
[2026-05-18T07:48:35+0200] index complete: sbert/dunzhang/stella_en_400M_v5; tail='    markdown: 4955 chunks     html: 34 chunks     css: 11 chunks     json: 6 chunks     text: 1 chunks '
[2026-05-18T07:48:46+0200] probes done: sbert/dunzhang/stella_en_400M_v5; summary=sbert/dunzhang/stella_en_400M_v5,1024,18,0,0.000,0,0,0,397,4283
[2026-05-18T07:48:46+0200] candidate done: sbert/dunzhang/stella_en_400M_v5; wall_s=1454
[2026-05-18T07:48:46+0200] benchmark complete; total_wall_s=1454
[2026-05-18T07:48:46+0200] results: CSV=/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/specs/system-spec-kit/026-graph-and-context-optimization/016-embedder-testing-and-architecture/006-code-embedder-coderank/004-extended-bake-off/evidence/cocoindex-embedder-comparison-extended.csv JSONL=/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/specs/system-spec-kit/026-graph-and-context-optimization/016-embedder-testing-and-architecture/006-code-embedder-coderank/004-extended-bake-off/evidence/cocoindex-embedder-comparison-extended.jsonl RUNLOG=/Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.opencode/specs/system-spec-kit/026-graph-and-context-optimization/016-embedder-testing-and-architecture/006-code-embedder-coderank/004-extended-bake-off/evidence/runlog.txt
[2026-05-18T07:48:46+0200] restore: setting COCOINDEX_CODE_EMBEDDING_MODEL back to jina-code
Databases deleted.
Settings file still exists. Run `ccc reset --all` to remove it too,
or edit it manually.
    markdown: 4960 chunks
    html: 34 chunks
    css: 11 chunks
    json: 6 chunks
    text: 1 chunks
[2026-05-18T08:12:22+0200] restore complete; CocoIndex back on jina-code baseline
[2026-05-18T09:24:55+0200] benchmark start; candidates=sbert/nomic-ai/CodeRankEmbed sbert/BAAI/bge-code-v1
[2026-05-18T09:24:55+0200] candidate start: sbert/nomic-ai/CodeRankEmbed
[2026-05-18T09:24:55+0200] pre-pull start: sbert/nomic-ai/CodeRankEmbed
[transformers] A new version of the following files was downloaded from https://huggingface.co/nomic-ai/CodeRankEmbed:
- configuration_hf_nomic_bert.py
. Make sure to double-check they do not contain any added malicious code. To avoid downloading new versions of the code file, you can pin a revision.
[transformers] A new version of the following files was downloaded from https://huggingface.co/nomic-ai/CodeRankEmbed:
- modeling_hf_nomic_bert.py
. Make sure to double-check they do not contain any added malicious code. To avoid downloading new versions of the code file, you can pin a revision.
<All keys matched successfully>
[2026-05-18T09:25:19+0200] pre-pull done: sbert/nomic-ai/CodeRankEmbed
[2026-05-18T09:25:19+0200] reset: sbert/nomic-ai/CodeRankEmbed
The following files will be deleted:
  /Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.cocoindex_code/cocoindex.db
  /Users/michelkerkmeester/MEGA/Development/Code_Environment/Public/.cocoindex_code/target_sqlite.db
Databases deleted.
Settings file still exists. Run `ccc reset --all` to remove it too,
or edit it manually.
[2026-05-18T09:25:19+0200] index start: sbert/nomic-ai/CodeRankEmbed
