unix_socket_test fails on dartkp-strong-linux-release-x64

[aam]

from https://dart-ci.appspot.com/log/vm-kernel-precomp-nnbd-linux-release-x64/dartkp-strong-linux-release-x64/4013/standalone/io/unix_socket_test

--- Command "vm_compile_to_kernel" (took 04.000165s):
DART_CONFIGURATION=ReleaseX64 /b/s/w/ir/pkg/vm/tool/gen_kernel --aot --platform=out/ReleaseX64/vm_platform_strong.dill -o /b/s/w/ir/out/ReleaseX64/generated_compilations/dartkp-strong-linux-release-x64/tests_standalone_io_unix_socket_test/out.dill /b/s/w/ir/tests/standalone/io/unix_socket_test.dart --packages=/b/s/w/ir/.packages -Ddart.vm.product=false --sound-null-safety

exit code:
0

--- Command "precompiler" (took 05.000178s):
DART_CONFIGURATION=ReleaseX64 out/ReleaseX64/gen_snapshot --snapshot-kind=app-aot-assembly --assembly=/b/s/w/ir/out/ReleaseX64/generated_compilations/dartkp-strong-linux-release-x64/tests_standalone_io_unix_socket_test/out.S --ignore-unrecognized-flags --packages=/b/s/w/ir/.packages /b/s/w/ir/out/ReleaseX64/generated_compilations/dartkp-strong-linux-release-x64/tests_standalone_io_unix_socket_test/out.dill

exit code:
0

--- Command "remove_kernel_file" (took 5ms):
DART_CONFIGURATION=ReleaseX64 rm /b/s/w/ir/out/ReleaseX64/generated_compilations/dartkp-strong-linux-release-x64/tests_standalone_io_unix_socket_test/out.dill

exit code:
0

--- Command "assemble" (took 01.000691s):
DART_CONFIGURATION=ReleaseX64 gcc -m64 -shared -nostdlib -o /b/s/w/ir/out/ReleaseX64/generated_compilations/dartkp-strong-linux-release-x64/tests_standalone_io_unix_socket_test/out.aotsnapshot /b/s/w/ir/out/ReleaseX64/generated_compilations/dartkp-strong-linux-release-x64/tests_standalone_io_unix_socket_test/out.S

exit code:
0

--- Command "remove_assembly" (took 7ms):
DART_CONFIGURATION=ReleaseX64 rm /b/s/w/ir/out/ReleaseX64/generated_compilations/dartkp-strong-linux-release-x64/tests_standalone_io_unix_socket_test/out.S

exit code:
0

--- Command "vm" (took 01.000175s):
DART_CONFIGURATION=ReleaseX64 out/ReleaseX64/dart_precompiled_runtime --sound-null-safety --ignore-unrecognized-flags --packages=/b/s/w/ir/.packages /b/s/w/ir/out/ReleaseX64/generated_compilations/dartkp-strong-linux-release-x64/tests_standalone_io_unix_socket_test/out.aotsnapshot

exit code:
255

stdout:
server started a socket Instance of '_RawSocket'

stderr:
Unhandled exception:
NoSuchMethodError: Class '_ResourceHandleImpl' has no instance getter '_handle'.
Receiver: Instance of '_ResourceHandleImpl'
Tried calling: _handle
#0      Object.noSuchMethod (dart:core-patch/object_patch.dart:68)
#1      _objectNoSuchMethod (dart:core-patch/object_patch.dart:115)
#2      new SocketControlMessage.fromHandles (dart:io-patch/socket_patch.dart:2581)
#3      testFileMessage.<anonymous closure> (file:///b/s/w/ir/tests/standalone/io/unix_socket_test.dart:492)
#4      _rootRunUnary (dart:async/zone.dart:1436)
#5      _CustomZone.runUnary (dart:async/zone.dart:1335)
#6      _CustomZone.runUnaryGuarded (dart:async/zone.dart:1244)
#7      _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:341)
#8      _BufferingStreamSubscription._add (dart:async/stream_impl.dart:271)
#9      _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:733)
#10     _StreamController._add (dart:async/stream_controller.dart:607)
#11     _StreamController.add (dart:async/stream_controller.dart:554)
#12     new _RawSocket.<anonymous closure> (dart:io-patch/socket_patch.dart:1813)
#13     _NativeSocket.issueWriteEvent.issue (dart:io-patch/socket_patch.dart:1318)
#14     _rootRun (dart:async/zone.dart:1420)
#15     _CustomZone.run (dart:async/zone.dart:1328)
#16     _CustomZone.runGuarded (dart:async/zone.dart:1236)
#17     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1276)
#18     _rootRun (dart:async/zone.dart:1428)
#19     _CustomZone.run (dart:async/zone.dart:1328)
#20     _CustomZone.runGuarded (dart:async/zone.dart:1236)
#21     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1276)
#22     _microtaskLoop (dart:async/schedule_microtask.dart:40)
#23     _startMicrotaskLoop (dart:async/schedule_microtask.dart:49)
#24     _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:122)
#25     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:193)

--- Re-run this test:
python3 tools/test.py -n dartkp-strong-linux-release-x64 standalone/io/unix_socket_test