[ci-scan] Test failure: DependencyInjection.ExternalContainers.Tests crash on iossimulator

[github-actions]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1458940
Build error leg or test failing: iossimulator-arm64 Release AllSubsets_CoreCLR - Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests

Error Details

Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests crashes on startup (APP_CRASH) on iossimulator-arm64 (CoreCLR), resulting in 0 tests run. The test host application terminates before executing any test methods.

[08:05:47] fail: Application test run crashed                 Test run crashed
[08:05:47] info: Test run result: Failed
[08:05:47] info: 	Tests run: 0

Exit code name: APP_CRASH

Error Message

true only for clear infra flakes. ExcludeConsoleLog skips helix log scanning. -->

{
  "ErrorMessage": [
    "Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests",
    "Application test run crashed"
  ],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Impact on platforms

• runtime-extra-platforms (def 154) / iossimulator-arm64 Release AllSubsets_CoreCLR / exit code: APP_CRASH
• 0 tests run; application crashes before test execution

First build it occurred

• Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1458940
• Finished: 2026-06-11T15:05:17Z
• Also present in follow-up build 1460723 (2026-06-12)

Related: #129149 (iossimulator-arm64 assembly loading issues)

---

Filed by ci-failure-scan (detection only). ci-failure-fix walks open [ci-scan] KBEs and either opens a small fix PR or comments here to loop in owners — it never disables the test.

Note

🔒 Integrity filter blocked 2 items

The following items were blocked because they don't meet the GitHub integrity level.

• #98964 search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
• #104825 search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".

To allow these resources, lower min-integrity in your GitHub frontmatter:

tools:
  github:
    min-integrity: approved  # merged | approved | unapproved | none

Generated by CI Outer-Loop Failure Scanner · ● 38.2M · ◷

Report

Build	Repository	Test	Pull Request
1462616	dotnet/runtime	Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests.WorkItemExecution

Summary

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