Diagnosed failure

SubprocessServerTest.TestTimeoutWhileQueueingCalls: Unrecognized error type. Please see the error log for more information.

Full log

[==========] Running 11 tests from 1 test suite.
[----------] Global test environment set-up.
[----------] 11 tests from SubprocessServerTest
[ RUN      ] SubprocessServerTest.TestBasicCall
WARNING: Logging before InitGoogleLogging() is written to STDERR
I20260618 22:26:45.846928  9489 server.cc:273] Received an EOF from the subprocess
W20260618 22:26:45.847090  9475 server.cc:408] The subprocess has exited with status 9
I20260618 22:26:45.852994  9486 server.cc:366] get failed, inbound queue shut down: Aborted: 
I20260618 22:26:45.852994  9490 server.cc:440] outbound queue shut down: Aborted: 
I20260618 22:26:45.853121  9488 server.cc:366] get failed, inbound queue shut down: Aborted: 
I20260618 22:26:45.853089  9487 server.cc:366] get failed, inbound queue shut down: Aborted: 
[       OK ] SubprocessServerTest.TestBasicCall (776 ms)
[ RUN      ] SubprocessServerTest.TestManyConcurrentCalls
I20260618 22:26:47.269572  9468 subprocess_server-test.cc:201] Sent 4000 requests in 0.749689775 seconds: 5335.5402906488889 req/s
I20260618 22:26:47.361377  9513 server.cc:273] Received an EOF from the subprocess
W20260618 22:26:47.361572  9499 server.cc:408] The subprocess has exited with status 9
I20260618 22:26:47.365206  9510 server.cc:366] get failed, inbound queue shut down: Aborted: 
I20260618 22:26:47.365181  9511 server.cc:366] get failed, inbound queue shut down: Aborted: 
I20260618 22:26:47.365139  9514 server.cc:440] outbound queue shut down: Aborted: 
I20260618 22:26:47.365139  9512 server.cc:366] get failed, inbound queue shut down: Aborted: 
[       OK ] SubprocessServerTest.TestManyConcurrentCalls (1511 ms)
[ RUN      ] SubprocessServerTest.TestTimeoutBeforeQueueing
I20260618 22:26:47.984346  9557 server.cc:273] Received an EOF from the subprocess
W20260618 22:26:47.984568  9543 server.cc:408] The subprocess has exited with status 9
I20260618 22:26:47.993633  9555 server.cc:366] get failed, inbound queue shut down: Aborted: 
I20260618 22:26:47.993752  9554 server.cc:366] get failed, inbound queue shut down: Aborted: 
I20260618 22:26:47.993673  9556 server.cc:366] get failed, inbound queue shut down: Aborted: 
I20260618 22:26:47.993716  9558 server.cc:440] outbound queue shut down: Aborted: 
I20260618 22:26:48.579173  9576 server.cc:273] Received an EOF from the subprocess
W20260618 22:26:48.579382  9562 server.cc:408] The subprocess has exited with status 9
I20260618 22:26:48.585290  9575 server.cc:366] get failed, inbound queue shut down: Aborted: 
I20260618 22:26:48.585381  9577 server.cc:440] outbound queue shut down: Aborted: 
I20260618 22:26:48.585412  9573 server.cc:366] get failed, inbound queue shut down: Aborted: 
I20260618 22:26:48.585486  9574 server.cc:366] get failed, inbound queue shut down: Aborted: 
[       OK ] SubprocessServerTest.TestTimeoutBeforeQueueing (1220 ms)
[ RUN      ] SubprocessServerTest.TestTimeoutWhileQueueingCalls
I20260618 22:26:49.243155  9596 server.cc:273] Received an EOF from the subprocess
F20260618 22:26:49.243386  9581 server.cc:401] Check failed: _s.ok() Bad status: Runtime error: Unable to wait on child: No child processes (error 10)
I20260618 22:26:49.243608  9592 server.cc:366] get failed, inbound queue shut down: Aborted: 
*** Check failure stack trace: ***
I20260618 22:26:49.243621  9597 server.cc:440] outbound queue shut down: Aborted: 
*** Aborted at 1781821609 (unix time) try "date -d @1781821609" if you are using GNU date ***
I20260618 22:26:49.243701  9593 server.cc:366] get failed, inbound queue shut down: Aborted: 
I20260618 22:26:49.243669  9594 server.cc:366] get failed, inbound queue shut down: Aborted: 
PC: @                0x0 (unknown)
*** SIGABRT (@0x3e8000024fc) received by PID 9468 (TID 0x7fbe5afba700) from PID 9468; stack trace: ***
    @     0x7fbe64afaa46 google::(anonymous namespace)::FailureSignalHandler() at ??:0
    @     0x7fbe6212e980 (unknown) at ??:0
    @     0x7fbe61b4fe87 gsignal at ??:0
    @     0x7fbe61b517f1 abort at ??:0
    @     0x7fbe64aec9ad google::LogMessage::Fail() at ??:0
    @     0x7fbe64aef88a google::LogMessage::SendToLog() at ??:0
    @     0x7fbe64aec4de google::LogMessage::Flush() at ??:0
    @     0x7fbe64aeda19 google::LogMessageFatal::~LogMessageFatal() at ??:0
    @     0x7fbe67c7cf01 kudu::subprocess::SubprocessServer::ExitCheckerThread() at ??:0
    @     0x7fbe67c7e710 kudu::subprocess::SubprocessServer::Init()::$_1::operator()() at ??:0
    @     0x7fbe67c7e539 std::_Function_handler<>::_M_invoke() at ??:0
    @     0x7fbe67d72f2d std::function<>::operator()() at ??:0
    @     0x7fbe660b1eaf kudu::Thread::SuperviseThread() at ??:0
    @     0x7fbe621236db start_thread at ??:0
    @     0x7fbe61c3261f clone at ??:0