If this doesn't merit its own issue, feel free to close.

Happened on Windows tool_integration_tests_1_6. The test ran fine but stopped partway through with the last message being Terminate batch job (Y/N)?.

Examples:
https://ci.chromium.org/ui/p/flutter/builders/prod/Windows%20tool_integration_tests_1_6/42/overview
https://ci.chromium.org/ui/p/flutter/builders/prod/Windows%20tool_integration_tests_3_6/43/overview