上流プロジェクト"system-library-update"の#7が実行　
元の原因: 
ユーザーjfutが実行
ビルドします。 ワークスペース: /home/services/jenkins/jobs/system-library-update/workspace/jdk/JDK-1.7
[JDK-1.7] $ /bin/sh -xe /tmp/hudson6100282023722325373.sh
+ cat
+ cat
[JDK-1.7] $ /home/services/jenkins/tools/hudson.tasks.Ant_AntInstallation/LATEST_ANT/bin/ant -Djdk=JDK-1.7
Buildfile: /home/services/jenkins/jobs/system-library-update/workspace/jdk/JDK-1.7/build.xml

BUILD FAILED
/home/services/jenkins/jobs/system-library-update/workspace/jdk/JDK-1.7/build.xml:1: Unexpected element "{}target" {antlib:org.apache.tools.ant}target

Total time: 0 seconds
Build step 'Antの呼び出し' marked build as failure
Finished: FAILURE