Console Output

16:19:42 The recommended git tool is: git
16:19:42 using credential docker-jenkins-github-credentials
16:19:42 Cloning the remote Git repository
16:19:42 Cloning with configured refspecs honoured and without tags
16:19:43 Fetching without tags
16:19:43 Merging remotes/origin/master commit 83875a4c2a097e2fe2adb023675be4338612f29a into PR head commit 5a185c8487c01b78696cbe5dca20672861d5ce8c
16:19:43 Merge succeeded, producing 5a185c8487c01b78696cbe5dca20672861d5ce8c
16:19:43 Checking out Revision 5a185c8487c01b78696cbe5dca20672861d5ce8c (PR-821)
16:19:43 Commit message: "update example versions"
Cloning repository https://github.com/docker/docker-ce-packaging.git
 > git init /home/ubuntu/workspace/docker-ce-packaging_PR-821 # timeout=10
Fetching upstream changes from https://github.com/docker/docker-ce-packaging.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-ce-packaging.git +refs/pull/821/head:refs/remotes/origin/PR-821 +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/821/head:refs/remotes/origin/PR-821 # 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-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 --progress -- https://github.com/docker/docker-ce-packaging.git +refs/pull/821/head:refs/remotes/origin/PR-821 +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 5a185c8487c01b78696cbe5dca20672861d5ce8c # 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 83875a4c2a097e2fe2adb023675be4338612f29a # timeout=10
 > git rev-parse HEAD^{commit} # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 5a185c8487c01b78696cbe5dca20672861d5ce8c # timeout=10
 > git --version # timeout=10
 > git --version # 'git version 2.17.1'
fatal: bad object 4f8fd6a86e521290dafaf7c28eced2a9b21b220a