=== RUN TestIntegration/slice=10-12/TestMountTmpfs/worker=containerd/frontend=builtin time="2026-05-10T10:34:48Z" level=info msg="fetch failed after status: 404 Not Found" host="localhost:54650" time="2026-05-10T10:34:49Z" level=info msg="fetch failed after status: 403 Forbidden" host=mcr.microsoft.com testing.go:1913: test executed panic(nil) or runtime.Goexit: subtest may have called FailNow on a parent test --- FAIL: TestIntegration/slice=10-12/TestMountTmpfs/worker=containerd/frontend=builtin (0.44s)

=== RUN TestIntegration run.go:412: Error Trace: D:/a/buildkit/buildkit/util/testutil/integration/run.go:412 C:/hostedtoolcache/windows/go/1.26.3/x64/src/sync/once.go:78 C:/hostedtoolcache/windows/go/1.26.3/x64/src/sync/once.go:69 D:/a/buildkit/buildkit/util/testutil/integration/run.go:409 D:/a/buildkit/buildkit/util/testutil/integration/run.go:239 C:/hostedtoolcache/windows/go/1.26.3/x64/src/runtime/asm_amd64.s:1771 Error: Received unexpected error: unexpected status from HEAD request to https://mcr.microsoft.com/v2/windows/nanoserver/manifests/ltsc2022: 403 Forbidden Test: TestIntegration --- FAIL: TestIntegration (0.44s)