[ci-scan] Test failure: Cryptography.Xml XSLT tests on tvos-arm64 (no dynamic code support)

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Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1440191
Build error leg or test failing: tvos-arm64 Release AllSubsets_Mono / System.Security.Cryptography.Xml.Tests

Error Details

[FAIL] System.Security.Cryptography.Xml.Tests.SignedXmlTest.SignedXml_EncryptedDataWithInfiniteXslTransform
  Assert.Throws() Failure: Exception type was not an exact match
  Expected: typeof(System.Security.Cryptography.CryptographicException)
  Actual:   typeof(System.NotSupportedException)
  ---- System.NotSupportedException : Xslts are only supported when dynamic code is supported.
     at System.Security.Cryptography.Xml.CryptoHelpers.CreateXmlDsigXsltTransform()

[FAIL] System.Security.Cryptography.Xml.Tests.EncryptedXmlTests.EncryptedXml_BillionLaughsXsltTransform
[FAIL] System.Security.Cryptography.Xml.Tests.EncryptedXmlTests.EncryptedKey_InfiniteLoopXsltTransform

Three XSLT-related crypto tests expect CryptographicException but receive NotSupportedException on tvos-arm64 because dynamic code (XSLT compilation) is not supported on that platform.

Error Message

{
  "ErrorMessage": "Xslts are only supported when dynamic code is supported",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Impact on platforms

• runtime-extra-platforms (def 154) / tvos-arm64 Release AllSubsets_Mono / System.Security.Cryptography.Xml.Tests / exit code 1

First build it occurred

• Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1438268
• Finished: 2026-05-28T07:44:32Z
• Occurrences in window: 2+ (confirmed in builds 1438268, 1440191)
• Computed within the scanned window; may not be the true origin.

---

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Note

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Generated by CI Outer-Loop Failure Scanner · ● 37.9M · ◷

Report

Build	Repository	Test	Pull Request
1441846	dotnet/runtime	System.Security.Cryptography.Xml.Tests.WorkItemExecution

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
1	1	1