Hi,
Using gradle with Jenkins, i have this issue using milestone 3 :
FAILURE: Build aborted because of an internal error.

• What went wrong:
  Build aborted because of an unexpected internal error. Please file an issue at: http://www.gradle.org.

• Try:
  Run with --debug option to get additional debug info.

• Exception is:
  org.gradle.api.UncheckedIOException: Could not remove entry '9619' from cache '/var/lib/jenkins/.gradle/caches/1.0-milestone-3/fileSnapshots/cache.bin'.
  at org.gradle.cache.btree.BTreePersistentIndexedCache.remove(BTreePersistentIndexedCache.java:164)
  at org.gradle.api.internal.changedetection.CacheBackedFileSnapshotRepository.remove(CacheBackedFileSnapshotRepository.java:47)
  at org.gradle.api.internal.changedetection.CacheBackedTaskHistoryRepository$1.update(CacheBackedTaskHistoryRepository.java:75)
  at org.gradle.api.internal.changedetection.DefaultTaskArtifactStateRepository$TaskArtifactStateImpl.afterTask(DefaultTaskArtifactStateRepository.java:191)
  at org.gradle.api.internal.changedetection.ShortCircuitTaskArtifactStateRepository$1.afterTask(ShortCircuitTaskArtifactStateRepository.java:47)
  at org.gradle.api.internal.changedetection.FileCacheBroadcastTaskArtifactStateRepository$1.afterTask(FileCacheBroadcastTaskArtifactStateRepository.java:51)
  at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:57)
  at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:57)
  at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:41)
  at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:51)
  at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:52)
  at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:42)
  at org.gradle.api.internal.AbstractTask.execute(AbstractTask.java:237)
  at org.gradle.execution.DefaultTaskGraphExecuter.executeTask(DefaultTaskGraphExecuter.java:167)
  at org.gradle.execution.DefaultTaskGraphExecuter.doExecute(DefaultTaskGraphExecuter.java:160)
  at org.gradle.execution.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:78)
  at org.gradle.execution.TaskNameResolvingBuildExecuter.execute(TaskNameResolvingBuildExecuter.java:113)
  at org.gradle.execution.DelegatingBuildExecuter.execute(DelegatingBuildExecuter.java:54)
  at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:158)
  at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:112)
  at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:80)
  at org.gradle.launcher.RunBuildAction.execute(RunBuildAction.java:41)
  at org.gradle.launcher.RunBuildAction.execute(RunBuildAction.java:27)
  at org.gradle.launcher.ExceptionReportingAction.execute(ExceptionReportingAction.java:32)
  at org.gradle.launcher.ExceptionReportingAction.execute(ExceptionReportingAction.java:21)
  at org.gradle.launcher.CommandLineActionFactory$WithLoggingAction.execute(CommandLineActionFactory.java:219)
  at org.gradle.launcher.CommandLineActionFactory$WithLoggingAction.execute(CommandLineActionFactory.java:203)
  at org.gradle.launcher.Main.execute(Main.java:55)
  at org.gradle.launcher.Main.main(Main.java:40)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  at java.lang.reflect.Method.invoke(Method.java:597)
  at org.gradle.launcher.ProcessBootstrap.runNoExit(ProcessBootstrap.java:46)
  at org.gradle.launcher.ProcessBootstrap.run(ProcessBootstrap.java:28)
  at org.gradle.launcher.GradleMain.main(GradleMain.java:24)
  Caused by: org.gradle.cache.btree.CorruptedCacheException: Corrupted IndexBlock 88527553 found in cache '/var/lib/jenkins/.gradle/caches/1.0-milestone-3/fileSnapshots/cache.bin'.
  at org.gradle.cache.btree.FileBackedBlockStore$BlockImpl.blockCorruptedException(FileBackedBlockStore.java:239)
  at org.gradle.cache.btree.FileBackedBlockStore$BlockImpl.read(FileBackedBlockStore.java:219)
  at org.gradle.cache.btree.FileBackedBlockStore.read(FileBackedBlockStore.java:91)
  at org.gradle.cache.btree.CachingBlockStore.read(CachingBlockStore.java:84)
  at org.gradle.cache.btree.FreeListBlockStore.read(FreeListBlockStore.java:78)
  at org.gradle.cache.btree.StateCheckBlockStore.read(StateCheckBlockStore.java:61)
  at org.gradle.cache.btree.BTreePersistentIndexedCache.load(BTreePersistentIndexedCache.java:169)
  at org.gradle.cache.btree.BTreePersistentIndexedCache.access$1300(BTreePersistentIndexedCache.java:40)
  at org.gradle.cache.btree.BTreePersistentIndexedCache$IndexBlock.find(BTreePersistentIndexedCache.java:465)
  at org.gradle.cache.btree.BTreePersistentIndexedCache$IndexBlock.find(BTreePersistentIndexedCache.java:445)
  at org.gradle.cache.btree.BTreePersistentIndexedCache.remove(BTreePersistentIndexedCache.java:155)
  ... 35 more

BUILD FAILED

It seems that it's a know issue, this issue may be a duplicate of issue GRADLE-1166
thank you for your time,

Olivier.