=== RUN TestIntegration run.go:315: copied mcr.microsoft.com/windows/nanoserver:ltsc2022 to local mirror localhost:52949/library/nanoserver:latest time="2025-05-21T10:12:57Z" level=info msg="fetch failed after status: 404 Not Found" host="localhost:52949" run.go:315: copied docker.io/wintools/nanoserver:ltsc2022 to local mirror localhost:52949/library/nanoserver:plus time="2025-05-21T10:13:00Z" level=info msg="fetch failed after status: 404 Not Found" host="localhost:52949" run.go:315: copied docker.io/wintools/nanoserver:ltsc2022 to local mirror localhost:52949/library/nanoserver:plus-busybox run.go:247: Error Trace: D:/a/buildkit/buildkit/util/testutil/integration/run.go:247 D:/a/buildkit/buildkit/util/testutil/integration/run.go:248 D:/a/buildkit/buildkit/frontend/dockerfile/dockerfile_test.go:278 Error: Should be true Test: TestIntegration --- FAIL: TestIntegration (63.55s)

=== RUN TestIntegration/slice=7-12/TestCopyThroughSymlinkMultiStage/worker=containerd/frontend=builtin dockerfile_test.go:1508: Error Trace: D:/a/buildkit/buildkit/frontend/dockerfile/dockerfile_test.go:1508 D:/a/buildkit/buildkit/util/testutil/integration/run.go:103 D:/a/buildkit/buildkit/util/testutil/integration/run.go:245 Error: Received unexpected error: failed to compute cache key: failed to calculate checksum of ref 5ymar42ffeoxotn3kqiac5qov::01hkxvpwma8vu7kzom7kvzz4m: failed to mount {windows-layer C:\Users\RUNNER~1\AppData\Local\Temp\bktest_containerd1752968521\root\io.containerd.snapshotter.v1.windows\snapshots\4 [parentLayerPaths=["C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\bktest_containerd1752968521\\root\\io.containerd.snapshotter.v1.windows\\snapshots\\3"] ro]}: failed to activate layer C:\Users\RUNNER~1\AppData\Local\Temp\bktest_containerd1752968521\root\io.containerd.snapshotter.v1.windows\snapshots\4: hcsshim::ActivateLayer failed in Win32: The process cannot access the file because it is being used by another process. (0x20): failed to activate layer C:\Users\RUNNER~1\AppData\Local\Temp\bktest_containerd1752968521\root\io.containerd.snapshotter.v1.windows\snapshots\4: hcsshim::ActivateLayer failed in Win32: The process cannot access the file because it is being used by another process. (0x20) github.com/moby/buildkit/util/stack.Enable D:/a/buildkit/buildkit/util/stack/stack.go:82 github.com/moby/buildkit/util/grpcerrors.FromGRPC D:/a/buildkit/buildkit/util/grpcerrors/grpcerrors.go:204 github.com/moby/buildkit/util/grpcerrors.UnaryClientInterceptor D:/a/buildkit/buildkit/util/grpcerrors/intercept.go:41 google.golang.org/grpc.(*ClientConn).Invoke D:/a/buildkit/buildkit/vendor/google.golang.org/grpc/call.go:35 github.com/moby/buildkit/api/services/control.(*controlClient).Solve D:/a/buildkit/buildkit/api/services/control/control_grpc.pb.go:88 github.com/moby/buildkit/client.(*Client).solve.func2 D:/a/buildkit/buildkit/client/solve.go:267 golang.org/x/sync/errgroup.(*Group).Go.func1 D:/a/buildkit/buildkit/vendor/golang.org/x/sync/errgroup/errgroup.go:78 runtime.goexit C:/hostedtoolcache/windows/go/1.23.9/x64/src/runtime/asm_amd64.s:1700 failed to solve github.com/moby/buildkit/client.(*Client).solve.func2 D:/a/buildkit/buildkit/client/solve.go:283 golang.org/x/sync/errgroup.(*Group).Go.func1 D:/a/buildkit/buildkit/vendor/golang.org/x/sync/errgroup/errgroup.go:78 runtime.goexit C:/hostedtoolcache/windows/go/1.23.9/x64/src/runtime/asm_amd64.s:1700 Test: TestIntegration/slice=7-12/TestCopyThroughSymlinkMultiStage/worker=containerd/frontend=builtin sandbox.go:202: stderr: D:\a\buildkit\buildkit\bin\containerd.exe --config C:\Users\RUNNER~1\AppData\Local\Temp\bktest_containerd1752968521\config.toml sandbox.go:205: > StartCmd 2025-05-21 10:13:43.7384525 +0000 UTC m=+49.476389001 D:\a\buildkit\buildkit\bin\containerd.exe --config C:\Users\RUNNER~1\AppData\Local\Temp\bktest_containerd1752968521\config.toml sandbox.go:205: time="2025-05-21T10:13:43.760664400Z" level=info msg="starting containerd" revision= version=2.0.4+unknown sandbox.go:205: time="2025-05-21T10:13:43.760664400Z" level=debug msg="Stackdump - waiting signal at Global\\stackdump-1412" sandbox.go:205: time="2025-05-21T10:13:43.808919300Z" level=info msg="loading plugin" id=io.containerd.internal.v1.opt type=io.containerd.internal.v1 sandbox.go:205: time="2025-05-21T10:13:43.809522000Z" level=info msg="