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{"receipt_id":"agent1-3","seq":3,"branch_id":"agent1","kind":"command","cmd":"/opt/receipts-f8e01ffd785848bab364c014790af8c2/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-f8e01ffd785848bab364c014790af8c2/receipts_pytest.py test/test_except.py::test_raise_on_find_unsupported_value test/test_except.py::test_raise_from_object_hook test/test_except.py::test_invalidvalue --no-header -rA --tb=line -p no:cacheprovider -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/agent1-3.xml","path":null,"exit_code":4,"stdout_tail":"============================= test session starts ==============================\ncollected 0 items / 3 errors\n\n==================================== ERRORS ====================================\n_____________________ ERROR collecting test/test_except.py _____________________\nImportError while importing test module '/msgpack-python/test/test_except.py'.\nHint: make sure your test modules/packages have valid Python names.\nTraceback:\n/usr/local/lib/python3.7/importlib/__init__.py:127: in import_module\n    return _bootstrap._gcd_import(name[level:], package, level)\ntest/test_except.py:5: in <module>\n    from msgpack import packb, unpackb, Unpacker, FormatError, StackError, OutOfData\nE   ImportError: cannot import name 'FormatError' from 'msgpack' (/msgpack-python/msgpack/__init__.py)\n_____________________ ERROR collecting test/test_except.py _____________________\nImportError while importing test module '/msgpack-python/test/test_except.py'.\nHint: make sure your test modules/packages have valid Python names.\nTraceback:\n/usr/local/lib/python3.7/importlib/__init__.py:127: in import_module\n    return _bootstrap._gcd_import(name[level:], package, level)\ntest/test_except.py:5: in <module>\n    from msgpack import packb, unpackb, Unpacker, FormatError, StackError, OutOfData\nE   ImportError: cannot import name 'FormatError' from 'msgpack' (/msgpack-python/msgpack/__init__.py)\n_____________________ ERROR collecting test/test_except.py _____________________\nImportError while importing test module '/msgpack-python/test/test_except.py'.\nHint: make sure your test modules/packages have valid Python names.\nTraceback:\n/usr/local/lib/python3.7/importlib/__init__.py:127: in import_module\n    return _bootstrap._gcd_import(name[level:], package, level)\ntest/test_except.py:5: in <module>\n    from msgpack import packb, unpackb, Unpacker, FormatError, StackError, OutOfData\nE   ImportError: cannot import name 'FormatError' from 'msgpack' (/msgpack-python/msgpack/__init__.py)\n------------ generated xml file: /opt/receipts/reports/agent1-3.xml ------------\n=========================== short test summary info ============================\nERROR test/test_except.py\nERROR test/test_except.py\nERROR test/test_except.py\n============================== 3 errors in 0.03s ===============================\n","stderr_tail":"ERROR: not found: /msgpack-python/test/test_except.py::test_raise_on_find_unsupported_value\n(no name '/msgpack-python/test/test_except.py::test_raise_on_find_unsupported_value' in any of [<Module test/test_except.py>])\n\nERROR: not found: /msgpack-python/test/test_except.py::test_raise_from_object_hook\n(no name '/msgpack-python/test/test_except.py::test_raise_from_object_hook' in any of [<Module test/test_except.py>])\n\nERROR: not found: /msgpack-python/test/test_except.py::test_invalidvalue\n(no name '/msgpack-python/test/test_except.py::test_invalidvalue' in any of [<Module test/test_except.py>])\n\n","stdout_sha256":"3f19d8b0b4d36a78fe475f8bcc1a3feb527804ba76aeaf42426b43ff66d23e75","log_path":"~/dev/nebius-hackathon/pilot/v2-P/msgpack__msgpack-python-331/runs/pilot-msgpack__msgpack-python-331-45d53df8fe/logs/agent1/agent1-3.log","tree_digest":"7724ed746a5c3a9cc05bbebddde33c9884b3d81ae94b1bc7f74995390a019648","tree_download_s":2.003166167065501,"started_at":"2026-10-03T20:00:43.919377Z","duration_s":0.197823,"timed_out":false,"image_before":"e071b3ff-2b46-4933-b421-127f91d845e9","image_after":"58e00160-2adb-4538-aef3-2bf758ec324b","junit":{"passed":[],"failed":[],"errors":[],"skipped":[],"collection_errors":["test/test_except.py"],"failure_text":{"test/test_except.py":"collection failure\nImportError while importing test module '/msgpack-python/test/test_except.py'.\nHint: make sure your test modules/packages have valid Python names.\nTraceback:\n/usr/local/lib/python3.7/importlib/__init__.py:127: in import_module\n    return _bootstrap._gcd_import(name[level:], package, level)\ntest/test_except.py:5: in <module>\n    from msgpack import packb, unpackb, Unpacker, FormatError, StackError, OutOfData\nE   ImportError: cannot import name 'FormatError' from 'msgpack' (/msgpack-python/msgpack/__init__.py)"}},"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
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{"receipt_id":"agent1-21","seq":21,"branch_id":"agent1","kind":"command","cmd":"/opt/receipts-0ae3494b9a164a98ad5aa5b7a5770b87/bin/busybox mkdir -p /opt/receipts/reports && python -I /opt/receipts-0ae3494b9a164a98ad5aa5b7a5770b87/receipts_pytest.py test/test_except.py::test_raise_on_find_unsupported_value test/test_except.py::test_raise_from_object_hook test/test_except.py::test_invalidvalue --no-header -rA --tb=line -p no:cacheprovider -o junit_family=xunit1 -p no:cacheprovider -rA --continue-on-collection-errors --junitxml=/opt/receipts/reports/agent1-21.xml","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\ncollected 3 items\n\ntest/test_except.py ...                                                  [100%]\n\n==================================== PASSES ====================================\n----------- generated xml file: /opt/receipts/reports/agent1-21.xml ------------\n=========================== short test summary info ============================\nPASSED test/test_except.py::test_raise_on_find_unsupported_value\nPASSED test/test_except.py::test_raise_from_object_hook\nPASSED test/test_except.py::test_invalidvalue\n============================== 3 passed in 0.03s ===============================\n","stderr_tail":"","stdout_sha256":"ac89207a8034b73f89a220f8f9edd8294389ae16acf9b8cb8b102cc1510b7e9f","log_path":"~/dev/nebius-hackathon/pilot/v2-P/msgpack__msgpack-python-331/runs/pilot-msgpack__msgpack-python-331-45d53df8fe/logs/agent1/agent1-21.log","tree_digest":"45ef3134795ff006d3b1b5c143670c7007fa715ffecdd3f34c051f0aaf5e8e70","tree_download_s":2.012915583094582,"started_at":"2026-10-03T20:02:14.295451Z","duration_s":0.201461,"timed_out":false,"image_before":"386be34c-be85-4126-82fd-271df9538ee5","image_after":"f05f518d-6314-4460-bb85-744105ba23e2","junit":{"passed":["test/test_except.py::test_raise_on_find_unsupported_value","test/test_except.py::test_raise_from_object_hook","test/test_except.py::test_invalidvalue"],"failed":[],"errors":[],"skipped":[],"collection_errors":[],"failure_text":{}},"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
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{"receipt_id":"agent1-23","seq":23,"branch_id":"agent1","kind":"command","cmd":"python -c \"from msgpack import FormatError, StackError, InvalidSequence, NestLimitExceeded; print('FormatError:', FormatError); print('StackError:', StackError); print('InvalidSequence:', InvalidSequence); print('NestLimitExceeded:', NestLimitExceeded); print('FormatError is InvalidSequence:', FormatError is InvalidSequence); print('StackError is NestLimitExceeded:', StackError is NestLimitExceeded)\"","path":null,"exit_code":0,"stdout_tail":"FormatError: <class 'msgpack.exceptions.InvalidSequence'>\nStackError: <class 'msgpack.exceptions.NestLimitExceeded'>\nInvalidSequence: <class 'msgpack.exceptions.InvalidSequence'>\nNestLimitExceeded: <class 'msgpack.exceptions.NestLimitExceeded'>\nFormatError is InvalidSequence: True\nStackError is NestLimitExceeded: True\n","stderr_tail":"","stdout_sha256":"7c69e1ac69f076ac5fc6167a61b8cfb39c0e890ad7bfa26cecfe62395156cffb","log_path":"~/dev/nebius-hackathon/pilot/v2-P/msgpack__msgpack-python-331/runs/pilot-msgpack__msgpack-python-331-45d53df8fe/logs/agent1/agent1-23.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T20:02:27.243058Z","duration_s":0.023767999999999997,"timed_out":false,"image_before":"cd92448b-3570-43d1-a371-3d080a6c4c13","image_after":"bc20be97-3a6a-4bdb-9cfb-46c4c7784870","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-24","seq":24,"branch_id":"agent1","kind":"command","cmd":"python -c \"import msgpack; packed = msgpack.packb([1,2,{'a':b'b'}]); assert msgpack.unpackb(packed) == [1,2,{'a':b'b'}]; print('Roundtrip ok')\"","path":null,"exit_code":1,"stdout_tail":"","stderr_tail":"Traceback (most recent call last):\n  File \"<string>\", line 1, in <module>\nAssertionError\n","stdout_sha256":"09a596a85bd2c6b81ed1c4f1519e29c8f5cdb5b6a1f7e3b5bde6b48fad697970","log_path":"~/dev/nebius-hackathon/pilot/v2-P/msgpack__msgpack-python-331/runs/pilot-msgpack__msgpack-python-331-45d53df8fe/logs/agent1/agent1-24.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T20:02:31.480005Z","duration_s":0.019701,"timed_out":false,"image_before":"bc20be97-3a6a-4bdb-9cfb-46c4c7784870","image_after":"22b7256d-9969-4290-9d29-fa6bc63b6b28","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-25","seq":25,"branch_id":"agent1","kind":"diff","cmd":"compute patch in executor staging agent1-087ca6a09c1c48da83d83014cbe92f9a: /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false add -A && /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false diff --cached --binary --no-ext-diff --no-textconv --no-renames 1e0a6a049a05404c6d5dd0c9a061fd8ae865b9ac","path":null,"exit_code":0,"stdout_tail":"diff --git a/msgpack/__init__.py b/msgpack/__init__.py\nindex 7493c4c..2143ecb 100644\n--- a/msgpack/__init__.py\n+++ b/msgpack/__init__.py\n@@ -1,6 +1,21 @@\n # coding: utf-8\n from msgpack._version import version\n-from msgpack.exceptions import *\n+from msgpack.exceptions import (\n+    UnpackException,\n+    BufferFull,\n+    OutOfData,\n+    UnpackValueError,\n+    ExtraData,\n+    PackException,\n+    PackValueError,\n+    PackOverflowError,\n+    InvalidSequence,\n+    NestLimitExceeded,\n+)\n+\n+# Aliases for backward compatibility / test expectations\n+FormatError = InvalidSequence\n+StackError = NestLimitExceeded\n \n from collections import namedtuple\n \ndiff --git a/msgpack/exceptions.py b/msgpack/exceptions.py\nindex 5bee5b2..fe371c8 100644\n--- a/msgpack/exceptions.py\n+++ b/msgpack/exceptions.py\n@@ -36,3 +36,18 @@ class ExtraData(UnpackValueError):\n PackException = Exception\n PackValueError = ValueError\n PackOverflowError = OverflowError\n+\n+\n+class InvalidSequence(ValueError):\n+    \"\"\"The data is not a valid msgpack sequence.\"\"\"\n+    pass\n+\n+\n+class NestLimitExceeded(ValueError):\n+    \"\"\"The nesting limit has been exceeded.\"\"\"\n+    pass\n+\n+\n+# Aliases for external compatibility\n+FormatError = InvalidSequence\n+StackError = NestLimitExceeded\ndiff --git a/msgpack/fallback.py b/msgpack/fallback.py\nindex 04fb5b9..b4ffc7e 100644\n--- a/msgpack/fallback.py\n+++ b/msgpack/fallback.py\n@@ -52,7 +52,9 @@ else:\n from msgpack.exceptions import (\n     BufferFull,\n     OutOfData,\n-    ExtraData)\n+    ExtraData,\n+    FormatError,\n+    StackError)\n \n from msgpack import ExtType\n \n@@ -561,11 +563,13 @@ class Unpacker(object):\n                 raise ValueError(\"%s exceeds max_map_len(%s)\", n, self._max_map_len)\n             typ = TYPE_MAP\n         else:\n-            raise ValueError(\"Unknown header: 0x%x\" % b)\n+            raise FormatError(\"Unknown header: 0x%x\" % b)\n         return typ, n, obj\n \n-    def _unpack(self, execute=EX_CONSTRUCT):\n+    def _unpack(self, execute=EX_CONSTRUCT, _depth=0):\n         typ, n, obj = self._read_header(execute)\n+        if _depth >= DEFAULT_RECURSE_LIMIT:\n+            raise StackError(\"Nested too deep\")\n \n         if execute == EX_READ_ARRAY_HEADER:\n             if typ != TYPE_ARRAY:\n@@ -584,7 +588,7 @@ class Unpacker(object):\n                 return\n             ret = newlist_hint(n)\n             for i in xrange(n):\n-                ret.append(self._unpack(EX_CONSTRUCT))\n+                ret.append(self._unpack(EX_CONSTRUCT, _depth+1))\n             if self._list_hook is not None:\n                 ret = self._list_hook(ret)\n             # TODO is the interaction between `list_hook` and `use_list` ok?\n@@ -598,14 +602,14 @@ class Unpacker(object):\n                 return\n             if self._object_pairs_hook is not None:\n                 ret = self._object_pairs_hook(\n-                    (self._unpack(EX_CONSTRUCT),\n-                     self._unpack(EX_CONSTRUCT))\n+                    (self._unpack(EX_CONSTRUCT, _depth+1),\n+                     self._unpack(EX_CONSTRUCT, _depth+1))\n                     for _ in xrange(n))\n             else:\n                 ret = {}\n                 for _ in xrange(n):\n-                    key = self._unpack(EX_CONSTRUCT)\n-                    ret[key] = self._unpack(EX_CONSTRUCT)\n+                    key = self._unpack(EX_CONSTRUCT, _depth+1)\n+                    ret[key] = self._unpack(EX_CONSTRUCT, _depth+1)\n                 if self._object_hook is not None:\n                     ret = self._object_hook(ret)\n             return ret\n","stderr_tail":"","stdout_sha256":"574a496887cd412b13e83e1fb655a48da3aa8dfabacb411cc69d273ce1c3e15e","log_path":null,"tree_digest":"f0654fb6ae14432f309851b351dd51168f54e19b00dfb17d026818187faeddb0","tree_download_s":3.707622375106439,"started_at":"2026-10-03T20:02:42.501608Z","duration_s":0.07242175005376339,"timed_out":false,"image_before":"22b7256d-9969-4290-9d29-fa6bc63b6b28","image_after":"22b7256d-9969-4290-9d29-fa6bc63b6b28","junit":null,"diff":{"files":[{"path":"msgpack/__init__.py","added":16,"deleted":1,"category":"source","status":"modified"},{"path":"msgpack/exceptions.py","added":15,"deleted":0,"category":"source","status":"modified"},{"path":"msgpack/fallback.py","added":12,"deleted":8,"category":"source","status":"modified"}],"patch_sha256":"574a496887cd412b13e83e1fb655a48da3aa8dfabacb411cc69d273ce1c3e15e","patch_path":"~/dev/nebius-hackathon/pilot/v2-P/msgpack__msgpack-python-331/runs/pilot-msgpack__msgpack-python-331-45d53df8fe/artifacts/agent1/agent1-25.patch"},"patch_sha256":"574a496887cd412b13e83e1fb655a48da3aa8dfabacb411cc69d273ce1c3e15e","dropped_paths":[],"snapshot_sha":"1e0a6a049a05404c6d5dd0c9a061fd8ae865b9ac"}