Description of the bug:

When using--experimental_cancel_concurrent_tests=failed, if also RBE, then when a test fails the build is interrupted (exit code 8) immediately, instead of other actions/tests continuing to run.

...CANCELLED: //Modules/AModule:AModuleTests (run 4 of 12)Target //Modules/AModule:AModuleTests up-to-date:  bazel-bin/Modules/AModule/AModuleTests  bazel-out/ios_sim_arm64-dbg-ios-sim_arm64-min16.0-applebin_ios-ST-e91433a8b443/bin/Modules/AModule/AModuleTests.__internal__.__test_bundle_archive-root/AModuleTests.xctestERROR: build interruptedINFO: Elapsed time: 11.948s, Critical Path: 10.38sINFO: 13 processes: 12 internal, 1 remote.ERROR: Build did NOT complete successfully//Modules/AModule:AModuleTests                    FAILED in 6.6s

Without RBE there is noERROR: build interrupted and other tests are able to continue to run.

Which category does this issue belong to?

Remote Execution

What's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

No response

Which operating system are you running Bazel on?

macOS 15.7.1

What is the output ofbazel info release?

release 8.4.2

Ifbazel info release returnsdevelopment version or(@non-git), tell us how you built Bazel.

No response

What's the output ofgit remote get-url origin; git rev-parse HEAD ?

If this is a regression, please try to identify the Bazel commit where the bug was introduced with bazelisk --bisect.

No response

Have you found anything relevant by searching the web?

No response

Any other information, logs, or outputs that you want to share?

@fmeum asked me to file this issue.