[Flaky Test] Microsoft.Build.Tasks.UnitTests.WriteLinesToFile_Tests.TransactionalModeSucceedsWithConcurrentOverwrites

[github-actions]

Flaky-test key (automated de-duplication — do not edit):

flaky-test-id: Microsoft.Build.Tasks.UnitTests.WriteLinesToFile_Tests.TransactionalModeSucceedsWithConcurrentOverwrites

Evidence

• Distinct sources: 3 (3 rolling main builds)
• Rolling builds: 1496519, 1506834, 1514373
• Error hashes (distinct signatures): 24ca1695, 321cf66e
• Legs/TFMs: FullOnWindows, FullOnWindows Release / net472
• Assembly: Microsoft.Build.Tasks.UnitTests
• First seen: 2026-07-07 · Last seen: 2026-07-17
• Sample build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1496519

Sample error

Microsoft.Build.Exceptions.BuildAbortedException : Build was canceled. Failed to successfully launch or connect to a child MSBuild.exe process.

Notes

This test will be quarantined via [ActiveIssue("<issue url>")] (from Microsoft.DotNet.XUnitV3Extensions, namespace Xunit) until the underlying nondeterminism is fixed.

Warning

Firewall blocked 1 domain

The following domain was blocked by the firewall during workflow execution:

• awmgmcpg

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "awmgmcpg"

See Network Configuration for more information.

Generated by Flaky Test Triage · 144.6 AIC · ⌖ 7.44 AIC · ⊞ 13.5K · ◷

[AlesProkop]

Closing as a duplicate of #14428. The flaky-test triage workflow filed this additional issue after its issue lookup returned an incomplete result set; the test remains tracked by #14428.