infra fails on 2,pi1-raspbian-wheezy

[MylesBorins]

git clean is failing when trying to remove out/

+ git clean -fdx
warning: failed to remove out/
Removing out/
Build step 'Execute shell' marked build as failure
TAP Reports Processing: START
Looking for TAP results report in workspace using pattern: *.tap
Did not find any matching files. Setting build result to FAILURE.
Checking ^not ok
Jenkins Text Finder: File set '*.tap' is empty
Notifying upstream projects of job completion
Finished: FAILURE

[refack]

See #951
So if you have a chance to kill the zombie, else could take it off line