Build failed in Jenkins: Mahout-Quality #2662

[Apache Jenkins Server]

See <https://builds.apache.org/job/Mahout-Quality/2662/>

------------------------------------------
Started by timer
Building remotely on ubuntu2 (Ubuntu ubuntu) in workspace 
<https://builds.apache.org/job/Mahout-Quality/ws/>
 > git rev-parse --is-inside-work-tree
Fetching changes from the remote Git repository
 > git config remote.origin.url 
 > https://git-wip-us.apache.org/repos/asf/mahout.git
Fetching upstream changes from 
https://git-wip-us.apache.org/repos/asf/mahout.git
 > git --version
 > git fetch --tags --progress 
 > https://git-wip-us.apache.org/repos/asf/mahout.git 
 > +refs/heads/*:refs/remotes/origin/*
 > git rev-parse origin/master^{commit}
Checking out Revision 6fbf3663b55def1f75fa3bed4690bf9562146921 (origin/master)
 > git config core.sparsecheckout
 > git checkout -f 6fbf3663b55def1f75fa3bed4690bf9562146921
FATAL: Could not checkout null with start point 
6fbf3663b55def1f75fa3bed4690bf9562146921
hudson.plugins.git.GitException: Could not checkout null with start point 
6fbf3663b55def1f75fa3bed4690bf9562146921
        at 
org.jenkinsci.plugins.gitclient.CliGitAPIImpl$8.execute(CliGitAPIImpl.java:1473)
        at 
org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:153)
        at 
org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:146)
        at hudson.remoting.UserRequest.perform(UserRequest.java:118)
        at hudson.remoting.UserRequest.perform(UserRequest.java:48)
        at hudson.remoting.Request$2.run(Request.java:328)
        at 
hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
Caused by: hudson.plugins.git.GitException: Command "git checkout -f 
6fbf3663b55def1f75fa3bed4690bf9562146921" returned status code 1:
stdout: 
stderr: error: unable to create file 
mrlegacy/src/main/java/org/apache/mahout/cf/taste/hadoop/als/ParallelALSFactorizationJob.java
 (Input/output error)
Checking out files:  43% (430/981)   
error: unable to create file 
mrlegacy/src/main/java/org/apache/mahout/cf/taste/hadoop/als/PredictionMapper.java
 (Input/output error)
Checking out files:  43% (431/981)   
error: unable to create file 
mrlegacy/src/main/java/org/apache/mahout/cf/taste/hadoop/als/RecommenderJob.java
 (Input/output error)
Checking out files:  44% (432/981)   
Checking out files:  45% (442/981)   
Checking out files:  46% (452/981)   
Checking out files:  47% (462/981)   
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Checking out files:  74% (726/981)   
Checking out files:  75% (736/981)   
Checking out files:  76% (746/981)   
Checking out files:  77% (756/981)   
Checking out files:  78% (766/981)   
Checking out files:  79% (775/981)   
Checking out files:  80% (785/981)   
Checking out files:  81% (795/981)   
Checking out files:  82% (805/981)   
Checking out files:  83% (815/981)   
Checking out files:  84% (825/981)   
Checking out files:  85% (834/981)   
Checking out files:  86% (844/981)   
Checking out files:  87% (854/981)   
Checking out files:  88% (864/981)   
Checking out files:  89% (874/981)   
Checking out files:  90% (883/981)   
Checking out files:  91% (893/981)   
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Checking out files:  93% (913/981)   
Checking out files:  94% (923/981)   
Checking out files:  95% (932/981)   
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Checking out files:  97% (952/981)   
Checking out files:  98% (962/981)   
Checking out files:  99% (972/981)   
Checking out files: 100% (981/981)   
Checking out files: 100% (981/981), done.
HEAD is now at 6fbf366... MAHOUT-1581 - Increase timeouts to avoid false 
positives.

        at 
org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1301)
        at 
org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1277)
        at 
org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1273)
        at 
org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommand(CliGitAPIImpl.java:1078)
        at 
org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommand(CliGitAPIImpl.java:1088)
        at 
org.jenkinsci.plugins.gitclient.CliGitAPIImpl$8.execute(CliGitAPIImpl.java:1468)
        ... 10 more