I noticed that on several jobs running on different Windows slaves, it takes a long time for the job to end, as seen in the following:

13:53:35 D:\Jenkins\workspace\CES7.0R_InstallKit>exit 0
14:09:36 [WARNINGS] Parsing warnings in console log with parsers [MSBuild]
14:09:36 [WARNINGS] MSBuild : Found 24 warnings.

I saw another issue regarding the archiving of artifacts #7641, but in our case, this specific job does not have artifacts enabled.

Also, I noticed this on different jobs, some are builds and some are tests.

Anything I can do to help debug this?

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I stopped a build that was hung and I got this call stack:

10:48:26 f:\Jenkins\workspace\CES7.0Dx86_WIN>exit 9009
10:48:27 Build step 'Execute Windows batch command' marked build as failure
11:07:55 ERROR: Publisher hudson.plugins.warnings.WarningsPublisher aborted due to exception
11:07:55 java.lang.InterruptedException
11:07:55 at java.lang.Object.wait(Native Method)
11:07:55 at java.lang.Object.wait(Object.java:485)
11:07:55 at hudson.model.Run$Runner$CheckpointSet.waitForCheckPoint(Run.java:1295)
11:07:55 at hudson.model.Run.waitForCheckpoint(Run.java:1263)
11:07:55 at hudson.model.CheckPoint.block(CheckPoint.java:144)
11:07:55 at hudson.tasks.BuildStepMonitor$2.perform(BuildStepMonitor.java:25)
11:07:55 at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:692)
11:07:55 at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:667)
11:07:55 at hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:645)
11:07:55 at hudson.model.Build$RunnerImpl.post2(Build.java:162)
11:07:55 at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:614)
11:07:55 at hudson.model.Run.run(Run.java:1429)
11:07:55 at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
11:07:55 at hudson.model.ResourceController.execute(ResourceController.java:88)
11:07:55 at hudson.model.Executor.run(Executor.java:238)

Looks like the culprit is the WarningsPublisher plugin. I'll disable it for now.