Console Output

23:11:49 The recommended git tool is: git
23:11:57 using credential docker-jenkins-github-credentials
23:11:57 Cloning the remote Git repository
23:11:57 Cloning with configured refspecs honoured and without tags
Cloning repository https://github.com/docker/docker-ce-packaging.git
 > git init /home/ubuntu/workspace/docker-ce-packaging_PR-852 # timeout=10
Fetching upstream changes from https://github.com/docker/docker-ce-packaging.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-ce-packaging.git +refs/pull/852/head:refs/remotes/origin/PR-852 +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config remote.origin.url https://github.com/docker/docker-ce-packaging.git # timeout=10
 > git config --add remote.origin.fetch +refs/pull/852/head:refs/remotes/origin/PR-852 # timeout=10
 > git config --add remote.origin.fetch +refs/heads/master:refs/remotes/origin/master # timeout=10
23:11:59 Fetching without tags
23:11:59 Merging remotes/origin/master commit 5cf9d29dd23e62dd47911bd01857bad02cd4059d into PR head commit 5286ca46ce6d02c0119a27e75a61f8e9a942100d
23:11:59 Merge succeeded, producing 5286ca46ce6d02c0119a27e75a61f8e9a942100d
23:11:59 Checking out Revision 5286ca46ce6d02c0119a27e75a61f8e9a942100d (PR-852)
 > git config remote.origin.url https://github.com/docker/docker-ce-packaging.git # timeout=10
Fetching upstream changes from https://github.com/docker/docker-ce-packaging.git
using GIT_ASKPASS to set credentials docker-jenkins GitHub credentials
 > git fetch --no-tags --force --progress -- https://github.com/docker/docker-ce-packaging.git +refs/pull/852/head:refs/remotes/origin/PR-852 +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 5286ca46ce6d02c0119a27e75a61f8e9a942100d # 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 5cf9d29dd23e62dd47911bd01857bad02cd4059d # timeout=10
 > git rev-parse HEAD^{commit} # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 5286ca46ce6d02c0119a27e75a61f8e9a942100d # timeout=10
23:12:03 Commit message: "Add docker.socket to the %preun section"
 > git --version # timeout=10
 > git --version # 'git version 2.25.1'
fatal: bad object 4f8fd6a86e521290dafaf7c28eced2a9b21b220a