pi1-raspbian-wheezy - git checkout failure

[kfarnung]

I'm seeing a failure on one of the arm devices:

https://ci.nodejs.org/job/node-test-binary-arm/13614/RUN_SUBSET=1,label=pi1-raspbian-wheezy/console

18:03:46 + git checkout -f refs/remotes/jenkins_tmp
18:03:46 fatal: Unable to create '/home/iojs/build/workspace/node-test-binary-arm/.git/index.lock': File exists.
18:03:46 
18:03:46 Another git process seems to be running in this repository, e.g.
18:03:46 an editor opened by 'git commit'. Please make sure all processes
18:03:46 are terminated then try again. If it still fails, a git process
18:03:46 may have crashed in this repository earlier:
18:03:46 remove the file manually to continue.
18:03:46 Build step 'Execute shell' marked build as failure

[maclover7]

cc @rvagg

[BridgeAR]

And again:
https://ci.nodejs.org/job/node-test-binary-arm/13616/RUN_SUBSET=0,label=pi1-raspbian-wheezy/console

[edit by @maclover7 below to include the error trace]

19:28:50 + git checkout -f refs/remotes/jenkins_tmp
19:28:50 fatal: Unable to create '/home/iojs/build/workspace/node-test-binary-arm/.git/index.lock': File exists.
19:28:50 
19:28:50 Another git process seems to be running in this repository, e.g.
19:28:50 an editor opened by 'git commit'. Please make sure all processes
19:28:50 are terminated then try again. If it still fails, a git process
19:28:50 may have crashed in this repository earlier:
19:28:50 remove the file manually to continue.
19:28:50 Build step 'Execute shell' marked build as failure
19:28:51 TAP Reports Processing: START
19:28:51 Looking for TAP results report in workspace using pattern: *.tap
19:28:51 Saving reports...
19:28:52 Processing '/var/lib/jenkins/jobs/node-test-binary-arm/configurations/axis-RUN_SUBSET/0/axis-label/pi1-raspbian-wheezy/builds/13616/tap-master-files/test.tap'
19:28:52 Parsing TAP test result [/var/lib/jenkins/jobs/node-test-binary-arm/configurations/axis-RUN_SUBSET/0/axis-label/pi1-raspbian-wheezy/builds/13616/tap-master-files/test.tap].
19:28:52 TAP Reports Processing: FINISH
19:28:52 Checking ^not ok
19:28:52 Notifying upstream projects of job completion
19:28:52 Finished: FAILURE

[rvagg]

should be better now .. got a new nfs server running underneath all of these