Console Output

20:22:08 using credential docker-jenkins-github-credentials
20:22:08 Cloning the remote Git repository
20:22:08 Cloning with configured refspecs honoured and without tags
Cloning repository https://github.com/docker/docker-py.git
 > git init /home/ubuntu/workspace/docker-py_PR-2734 # timeout=10
Fetching upstream changes from https://github.com/docker/docker-py.git
 > git --version # timeout=10
 > git --version # 'git version 2.17.1'
using GIT_ASKPASS to set credentials docker-jenkins GitHub credentials
 > git fetch --no-tags --progress -- https://github.com/docker/docker-py.git +refs/pull/2734/head:refs/remotes/origin/PR-2734 +refs/heads/master:refs/remotes/origin/master # timeout=10
20:22:10 Fetching without tags
20:22:10 Merging remotes/origin/master commit 3ec7fee7362eecfd7bcfd62edcfac3380422fb64 into PR head commit 61da33ebefbde983005eb1142774e34c43386ce4
 > git config remote.origin.url https://github.com/docker/docker-py.git # timeout=10
 > git config --add remote.origin.fetch +refs/pull/2734/head:refs/remotes/origin/PR-2734 # 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/2734/head:refs/remotes/origin/PR-2734 +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 61da33ebefbde983005eb1142774e34c43386ce4 # timeout=10
20:22:11 Merge succeeded, producing 61da33ebefbde983005eb1142774e34c43386ce4
20:22:11 Checking out Revision 61da33ebefbde983005eb1142774e34c43386ce4 (PR-2734)
 > git remote # timeout=10
 > git config --get remote.origin.url # timeout=10
using GIT_ASKPASS to set credentials docker-jenkins GitHub credentials
 > git merge 3ec7fee7362eecfd7bcfd62edcfac3380422fb64 # timeout=10
 > git rev-parse HEAD^{commit} # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 61da33ebefbde983005eb1142774e34c43386ce4 # timeout=10
20:22:15 Commit message: "Prepare release 4.4.1"
20:22:15 First time build. Skipping changelog.
 > git --version # timeout=10
 > git --version # 'git version 2.17.1'
fatal: bad object 5d8b74fd03a1c7cc00e1c1f32d100ed97a17f4f0