Console Output

19:40:09 using credential docker-jenkins-github-credentials
19:40:09 Cloning the remote Git repository
19:40:09 Cloning with configured refspecs honoured and without tags
19:40:10 Fetching without tags
19:40:10 Merging remotes/origin/master commit 5efe28149a2060ff64faab5d4c1566f4cb994792 into PR head commit 6f13db5919acd645f96c51fcf8cba9104c9f48aa
Cloning repository https://github.com/docker/docker-py.git
 > git init /home/ubuntu/workspace/docker-py_PR-2593 # timeout=10
Fetching upstream changes from https://github.com/docker/docker-py.git
 > git --version # timeout=10
using GIT_ASKPASS to set credentials docker-jenkins GitHub credentials
 > git fetch --no-tags --progress -- https://github.com/docker/docker-py.git +refs/pull/2593/head:refs/remotes/origin/PR-2593 +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config remote.origin.url https://github.com/docker/docker-py.git # timeout=10
 > git config --add remote.origin.fetch +refs/pull/2593/head:refs/remotes/origin/PR-2593 # timeout=10
 > git config --add remote.origin.fetch +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config remote.origin.url https://github.com/docker/docker-py.git # timeout=10
Fetching upstream changes from https://github.com/docker/docker-py.git
using GIT_ASKPASS to set credentials docker-jenkins GitHub credentials
 > git fetch --no-tags --progress -- https://github.com/docker/docker-py.git +refs/pull/2593/head:refs/remotes/origin/PR-2593 +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 6f13db5919acd645f96c51fcf8cba9104c9f48aa # timeout=10
 > git merge 5efe28149a2060ff64faab5d4c1566f4cb994792 # timeout=10
 > git rev-parse HEAD^{commit} # timeout=10
19:40:10 Merge succeeded, producing 6f13db5919acd645f96c51fcf8cba9104c9f48aa
19:40:10 Checking out Revision 6f13db5919acd645f96c51fcf8cba9104c9f48aa (PR-2593)
19:40:10 Commit message: "Upgrade Windows dependency"
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 6f13db5919acd645f96c51fcf8cba9104c9f48aa # timeout=10
 > git --version # timeout=10
fatal: bad object ad1b00369dd78a15c273e17e363f91bced3f6e18