Console Output

17:36:08 The recommended git tool is: git
17:36:08 using credential docker-jenkins-github-credentials
17:36:08 Cloning the remote Git repository
17:36:08 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-2900 # timeout=10
Fetching upstream changes from https://github.com/docker/docker-py.git
 > git --version # timeout=10
 > git --version # 'git version 2.25.1'
using GIT_ASKPASS to set credentials docker-jenkins GitHub credentials
 > git fetch --no-tags --force --progress -- https://github.com/docker/docker-py.git +refs/pull/2900/head:refs/remotes/origin/PR-2900 +refs/heads/master:refs/remotes/origin/master # timeout=10
17:36:09 Fetching without tags
17:36:10 Merging remotes/origin/master commit a48a5a9647761406d66e8271f19fab7fa0c5f582 into PR head commit fa56109f6bab79f0e7f576bed2148bf5677090bd
17:36:10 Merge succeeded, producing fa56109f6bab79f0e7f576bed2148bf5677090bd
17:36:10 Checking out Revision fa56109f6bab79f0e7f576bed2148bf5677090bd (PR-2900)
17:36:10 Commit message: "Add remove() method to Image"
 > git config remote.origin.url https://github.com/docker/docker-py.git # timeout=10
 > git config --add remote.origin.fetch +refs/pull/2900/head:refs/remotes/origin/PR-2900 # 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 --force --progress -- https://github.com/docker/docker-py.git +refs/pull/2900/head:refs/remotes/origin/PR-2900 +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f fa56109f6bab79f0e7f576bed2148bf5677090bd # timeout=10
 > git remote # timeout=10
 > git config --get remote.origin.url # timeout=10
using GIT_ASKPASS to set credentials docker-jenkins GitHub credentials
 > git merge a48a5a9647761406d66e8271f19fab7fa0c5f582 # timeout=10
 > git rev-parse HEAD^{commit} # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f fa56109f6bab79f0e7f576bed2148bf5677090bd # timeout=10
 > git --version # timeout=10
 > git --version # 'git version 2.25.1'
fatal: bad object 5d8b74fd03a1c7cc00e1c1f32d100ed97a17f4f0