ci: failure in wallet_multiwallet.py --usecli #34854

https://github.com/bitcoin/bitcoin/actions/runs/23261953500/job/67632557416#step:16:3711:

test  2026-03-18T20:26:38.148258Z TestFramework (ERROR): Called Process failed with stdout='error: timeout on transient error: Could not connect to the server 127.0.0.1:19024 (error code 0 - "timeout reached") 
                                   Make sure the bitcoind server is running and that you are connecting to the correct RPC port.
                                   Use "bitcoin-cli -help" for more info.
                                   '; stderr='None';
                                   Traceback (most recent call last):
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\test_framework\test_framework.py", line 142, in main
                                       self.run_test()
                                       ~~~~~~~~~~~~~^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\wallet_multiwallet.py", line 98, in run_test
                                       self.test_init(node, wallet_names)
                                       ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\wallet_multiwallet.py", line 220, in test_init
                                       self.stop_node(0, 'Warning: Ignoring duplicate -wallet w1.')
                                       ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\test_framework\test_framework.py", line 525, in stop_node
                                       self.nodes[i].stop_node(expected_stderr, wait=wait)
                                       ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\test_framework\test_node.py", line 465, in stop_node
                                       self.stop(wait=wait)
                                       ~~~~~~~~~^^^^^^^^^^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\test_framework\test_node.py", line 938, in __call__
                                       return self.cli.send_cli(self.command, *args, **kwargs)
                                              ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\test_framework\test_node.py", line 1023, in send_cli
                                       raise subprocess.CalledProcessError(returncode, p_args, output=cli_stderr)
                                   subprocess.CalledProcessError: Command '['D:\\a\\bitcoin\\bitcoin\\build\\bin\\Release\\bitcoin-cli.exe', '-nonamed', '-datadir=D:\\a\\bitcoin\\bitcoin\\test_runner_₿_🏃_20260318_193257\\wallet_multiwallet_252\\node0', '-rpcclienttimeout=2400', '-named', 'stop', 'wait=0']' returned non-zero exit status 1.
 test  2026-03-18T20:26:38.152788Z TestFramework (DEBUG): Closing down network thread 
 test  2026-03-18T20:26:38.204232Z TestFramework (INFO): Not stopping nodes as test failed. The dangling processes will be cleaned up later. 
 test  2026-03-18T20:26:38.204458Z TestFramework (WARNING): Not cleaning up dir D:\a\bitcoin\bitcoin\test_runner_₿_🏃_20260318_193257\wallet_multiwallet_252 
 test  2026-03-18T20:26:38.204555Z TestFramework (ERROR): Test failed. Test logging available at D:\a\bitcoin\bitcoin\test_runner_₿_🏃_20260318_193257\wallet_multiwallet_252/test_framework.log 
 test  2026-03-18T20:26:38.204899Z TestFramework (ERROR): 
 test  2026-03-18T20:26:38.205348Z TestFramework (ERROR): Hint: Call D:\a\bitcoin\bitcoin\build\test\functional\combine_logs.py 'D:\a\bitcoin\bitcoin\test_runner_₿_🏃_20260318_193257\wallet_multiwallet_252' to consolidate all logs 
 test  2026-03-18T20:26:38.205451Z TestFramework (ERROR): 
 test  2026-03-18T20:26:38.205498Z TestFramework (ERROR): If this failure happened unexpectedly or intermittently, please file a bug and provide a link or upload of the combined log. 
 test  2026-03-18T20:26:38.205621Z TestFramework (ERROR): https://github.com/bitcoin/bitcoin/issues 
 test  2026-03-18T20:26:38.205664Z TestFramework (ERROR): 

 node0 stderr Error: Specified -walletdir "wallets" is a relative path 
 node0 stderr Warning: Ignoring duplicate -wallet w1. 
 node0 stderr Error: Specified -walletdir "debug.log" is not a directory 
 node0 stderr Error: Specified -walletdir "wallets" does not exist 

Your log excerpt is truncated, but the larger one shows it is waiting for "1 connections to stop HTTP server", so I fail to see how the reply could not reach bitcoin-cli:

test  2026-03-18T19:46:38.080863Z TestFramework.node0 (DEBUG): RPC successfully started 
 test  2026-03-18T19:46:38.081145Z TestFramework.node0 (DEBUG): Stopping node 
 test  2026-03-18T19:46:38.081276Z TestFramework.bitcoincli (DEBUG): Running bitcoin-cli ['-datadir=D:\\a\\bitcoin\\bitcoin\\test_runner_₿_🏃_20260318_193257\\wallet_multiwallet_252\\node0', '-rpcclienttimeout=2400', '-named', 'stop', 'wait=0'] 
 node0 2026-03-18T19:46:38.098996Z [http] [D:\a\bitcoin\bitcoin\src\httpserver.cpp:232] [http_request_cb] [http] Received a POST request for / from 127.0.0.1:50515 
 node0 2026-03-18T19:46:38.099101Z [http_pool_1] [D:\a\bitcoin\bitcoin\src\rpc\request.cpp:243] [parse] [rpc] ThreadRPCServer method=stop user=__cookie__ 
 node0 2026-03-18T19:46:38.099171Z [init] [D:\a\bitcoin\bitcoin\src\httpserver.cpp:448] [InterruptHTTPServer] [http] Interrupting HTTP server 
 node0 2026-03-18T19:46:38.099203Z [init] [D:\a\bitcoin\bitcoin\src\httprpc.cpp:349] [InterruptHTTPRPC] [rpc] Interrupting HTTP RPC server 
 node0 2026-03-18T19:46:38.099220Z [init] [D:\a\bitcoin\bitcoin\src\rpc\server.cpp:284] [operator ()] [rpc] Interrupting RPC 
 node0 2026-03-18T19:46:38.099234Z [http_pool_1] [D:\a\bitcoin\bitcoin\src\util\thread.cpp:22] [TraceThread] http_pool_1 thread exit 
 node0 2026-03-18T19:46:38.099255Z [http_pool_0] [D:\a\bitcoin\bitcoin\src\util\thread.cpp:22] [TraceThread] http_pool_0 thread exit 
 node0 2026-03-18T19:46:38.099297Z [addcon] [D:\a\bitcoin\bitcoin\src\util\thread.cpp:22] [TraceThread] addcon thread exit 
 node0 2026-03-18T19:46:38.099368Z [init] [D:\a\bitcoin\bitcoin\src\init.cpp:293] [Shutdown] Shutdown in progress... 
 node0 2026-03-18T19:46:38.099395Z [shutoff] [D:\a\bitcoin\bitcoin\src\httprpc.cpp:354] [StopHTTPRPC] [rpc] Stopping HTTP RPC server 
 node0 2026-03-18T19:46:38.099416Z [shutoff] [D:\a\bitcoin\bitcoin\src\httpserver.cpp:705] [UnregisterHTTPHandler] [http] Unregistering HTTP handler for / (exactmatch 1) 
 node0 2026-03-18T19:46:38.099442Z [shutoff] [D:\a\bitcoin\bitcoin\src\httpserver.cpp:705] [UnregisterHTTPHandler] [http] Unregistering HTTP handler for /wallet/ (exactmatch 0) 
 node0 2026-03-18T19:46:38.099467Z [shutoff] [D:\a\bitcoin\bitcoin\src\rpc\server.cpp:296] [operator ()] [rpc] Stopping RPC 
 node0 2026-03-18T19:46:38.099663Z [shutoff] [D:\a\bitcoin\bitcoin\src\rpc\server.cpp:298] [operator ()] [rpc] RPC stopped. 
 node0 2026-03-18T19:46:38.099685Z [shutoff] [D:\a\bitcoin\bitcoin\src\httpserver.cpp:459] [StopHTTPServer] [http] Stopping HTTP server 
 node0 2026-03-18T19:46:38.099698Z [shutoff] [D:\a\bitcoin\bitcoin\src\httpserver.cpp:461] [StopHTTPServer] [http] Waiting for HTTP worker threads to exit 
 node0 2026-03-18T19:46:38.099785Z [shutoff] [D:\a\bitcoin\bitcoin\src\httpserver.cpp:472] [StopHTTPServer] [http] Waiting for 1 connections to stop HTTP server 
 node0 2026-03-18T19:46:38.100434Z [http] [D:\a\bitcoin\bitcoin\src\httpserver.cpp:305] [ThreadHTTP] [http] Exited http event loop 
 node0 2026-03-18T19:46:38.128017Z [msghand] [D:\a\bitcoin\bitcoin\src\util\thread.cpp:22] [TraceThread] msghand thread exit 
 node0 2026-03-18T19:46:38.143372Z [net] [D:\a\bitcoin\bitcoin\src\util\thread.cpp:22] [TraceThread] net thread exit 
 node0 2026-03-18T20:01:38.041967Z [scheduler] [D:\a\bitcoin\bitcoin\src\net.cpp:2404] [DumpAddresses] [net] Flushed 0 addresses to peers.dat 5ms 
 node0 2026-03-18T20:16:38.062078Z [scheduler] [D:\a\bitcoin\bitcoin\src\net.cpp:2404] [DumpAddresses] [net] Flushed 0 addresses to peers.dat 1ms 
 test  2026-03-18T20:26:38.148258Z TestFramework (ERROR): Called Process failed with stdout='error: timeout on transient error: Could not connect to the server 127.0.0.1:19024 (error code 0 - "timeout reached") 
                                   Make sure the bitcoind server is running and that you are connecting to the correct RPC port.
                                   Use "bitcoin-cli -help" for more info.
                                   '; stderr='None';
                                   Traceback (most recent call last):
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\test_framework\test_framework.py", line 142, in main
                                       self.run_test()
                                       ~~~~~~~~~~~~~^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\wallet_multiwallet.py", line 98, in run_test
                                       self.test_init(node, wallet_names)
                                       ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\wallet_multiwallet.py", line 220, in test_init
                                       self.stop_node(0, 'Warning: Ignoring duplicate -wallet w1.')
                                       ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\test_framework\test_framework.py", line 525, in stop_node
                                       self.nodes[i].stop_node(expected_stderr, wait=wait)
                                       ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\test_framework\test_node.py", line 465, in stop_node
                                       self.stop(wait=wait)
                                       ~~~~~~~~~^^^^^^^^^^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\test_framework\test_node.py", line 938, in __call__
                                       return self.cli.send_cli(self.command, *args, **kwargs)
                                              ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                     File "D:\a\bitcoin\bitcoin\build\test\functional\test_framework\test_node.py", line 1023, in send_cli
                                       raise subprocess.CalledProcessError(returncode, p_args, output=cli_stderr)
                                   subprocess.CalledProcessError: Command '['D:\\a\\bitcoin\\bitcoin\\build\\bin\\Release\\bitcoin-cli.exe', '-nonamed', '-datadir=D:\\a\\bitcoin\\bitcoin\\test_runner_₿_🏃_20260318_193257\\wallet_multiwallet_252\\node0', '-rpcclienttimeout=2400', '-named', 'stop', 'wait=0']' returned non-zero exit status 1.

Maybe related to #34634 et al.?