Seen locally in https://drahtbot.space/temp_scratch/feature_assumeutxo_265.tar.zstd:
commit should be roughly 40e7d4cd0d7f1d922b92b0c640d3d89eef059411 and the command was RUN_UNIT_TESTS=false MAKEJOBS="-j8" FILE_ENV="./ci/test/00_setup_env_native_nowallet_libbitcoinkernel.sh" ./ci/test_run_all.sh
 0 node1 2025-10-15T18:56:48.763939Z [shutoff] [txdb.cpp:151] [virtual bool CCoinsViewDB::BatchWrite(CoinsViewCacheCursor &, const uint256 &)] [coindb] Writing final batch of 0.00 MiB 
 1 node1 2025-10-15T18:56:48.763948Z [shutoff] [txdb.cpp:153] [virtual bool CCoinsViewDB::BatchWrite(CoinsViewCacheCursor &, const uint256 &)] [coindb] Committed 0 changed transaction outputs (out of 0) to coin database... 
 2 node1 2025-10-15T18:56:48.763958Z [shutoff] [logging/timer.h:58] [void BCLog::Timer<std::chrono::duration<long long, std::ratio<1, 1000>>>::Log(const std::string &) [TimeType = std::chrono::duration<long long, std::ratio<1, 1000>>]] [bench] FlushStateToDisk: write coins cache to disk (0 coins, 256KiB) completed (0.02ms) 
 3 node1 2025-10-15T18:56:48.763966Z [shutoff] [validationinterface.cpp:246] [void ValidationSignals::ChainStateFlushed(ChainstateRole, const CBlockLocator &)] [validation] Enqueuing ChainStateFlushed: block hash=5d3144f90878dbabd3a42352be3294df923c93198e1399b93d07292c9cd1e1ce 
 4 node1 2025-10-15T18:56:48.763997Z [shutoff] [validation.cpp:2837] [bool Chainstate::FlushStateToDisk(BlockValidationState &, FlushStateMode, int)] [coindb] Writing chainstate to disk: flush mode=ALWAYS, prune=0, large=0, critical=0, periodic=0 
 5 node1 2025-10-15T18:56:48.764007Z [shutoff] [logging/timer.h:58] [void BCLog::Timer<std::chrono::duration<long long, std::ratio<1, 1000>>>::Log(const std::string &) [TimeType = std::chrono::duration<long long, std::ratio<1, 1000>>]] [bench] FlushStateToDisk: write block and undo data to disk started 
 6 node1 2025-10-15T18:56:48.764041Z [shutoff] [logging/timer.h:58] [void BCLog::Timer<std::chrono::duration<long long, std::ratio<1, 1000>>>::Log(const std::string &) [TimeType = std::chrono::duration<long long, std::ratio<1, 1000>>]] [bench] FlushStateToDisk: write block and undo data to disk completed (0.03ms) 
 7 node1 2025-10-15T18:56:48.764050Z [shutoff] [logging/timer.h:58] [void BCLog::Timer<std::chrono::duration<long long, std::ratio<1, 1000>>>::Log(const std::string &) [TimeType = std::chrono::duration<long long, std::ratio<1, 1000>>]] [bench] FlushStateToDisk: write block index to disk started 
 8 node1 2025-10-15T18:56:48.764061Z [shutoff] [logging/timer.h:58] [void BCLog::Timer<std::chrono::duration<long long, std::ratio<1, 1000>>>::Log(const std::string &) [TimeType = std::chrono::duration<long long, std::ratio<1, 1000>>]] [bench] FlushStateToDisk: write block index to disk completed (0.01ms) 
 9 node1 2025-10-15T18:56:48.764067Z [shutoff] [logging/timer.h:58] [void BCLog::Timer<std::chrono::duration<long long, std::ratio<1, 1000>>>::Log(const std::string &) [TimeType = std::chrono::duration<long long, std::ratio<1, 1000>>]] [bench] FlushStateToDisk: write coins cache to disk (0 coins, 256KiB) started 
10 node1 2025-10-15T18:56:48.764076Z [shutoff] [txdb.cpp:151] [virtual bool CCoinsViewDB::BatchWrite(CoinsViewCacheCursor &, const uint256 &)] [coindb] Writing final batch of 0.00 MiB 
11 node1 2025-10-15T18:56:48.764083Z [shutoff] [txdb.cpp:153] [virtual bool CCoinsViewDB::BatchWrite(CoinsViewCacheCursor &, const uint256 &)] [coindb] Committed 0 changed transaction outputs (out of 0) to coin database... 
12 node1 2025-10-15T18:56:48.764092Z [shutoff] [logging/timer.h:58] [void BCLog::Timer<std::chrono::duration<long long, std::ratio<1, 1000>>>::Log(const std::string &) [TimeType = std::chrono::duration<long long, std::ratio<1, 1000>>]] [bench] FlushStateToDisk: write coins cache to disk (0 coins, 256KiB) completed (0.02ms) 
13 node1 2025-10-15T18:56:48.764100Z [shutoff] [validationinterface.cpp:246] [void ValidationSignals::ChainStateFlushed(ChainstateRole, const CBlockLocator &)] [validation] Enqueuing ChainStateFlushed: block hash=6d9186a0db6df121d2006c40c7827c447afe6329b705666bca1744b72c71f0ad 
14 node1 2025-10-15T18:56:48.767027Z [shutoff] [init.cpp:410] [void Shutdown(NodeContext &)] Shutdown done 
15 test  2025-10-15T18:56:48.791717Z TestFramework.node1 (DEBUG): Node stopped 
16 test  2025-10-15T18:56:48.791816Z TestFramework (INFO): Checking that blocks are segmented on disk 
17 test  2025-10-15T18:56:48.791990Z TestFramework (ERROR): Unexpected exception 
18                                   Traceback (most recent call last):
19                                     File "/ci_container_base/test/functional/test_framework/test_framework.py", line 198, in main
20                                       self.run_test()
21                                     File "/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/test/functional/feature_assumeutxo.py", line 629, in run_test
22                                       assert not self.has_blockfile(n1, "00002"), "too many blockfiles"
23                                   AssertionError: too many blockfiles