Console Output

15:52:20 The recommended git tool is: git
15:52:20 using credential docker-jenkins-github-credentials
15:52:20 Cloning the remote Git repository
15:52:20 Cloning with configured refspecs honoured and without tags
15:52:20 Fetching without tags
15:52:20 Merging remotes/origin/master commit 83875a4c2a097e2fe2adb023675be4338612f29a into PR head commit e8d994c3323ce8c088ced4c3de38f1a33548ea3c
15:52:21 Merge succeeded, producing e8d994c3323ce8c088ced4c3de38f1a33548ea3c
15:52:21 Checking out Revision e8d994c3323ce8c088ced4c3de38f1a33548ea3c (PR-820)
15:52:21 Commit message: "deb: fix plugin versions to have correct format for deb packages"
Cloning repository https://github.com/docker/docker-ce-packaging.git
 > git init /home/ubuntu/workspace/docker-ce-packaging_PR-820 # 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/820/head:refs/remotes/origin/PR-820 +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/820/head:refs/remotes/origin/PR-820 # 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 --force --progress -- https://github.com/docker/docker-ce-packaging.git +refs/pull/820/head:refs/remotes/origin/PR-820 +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f e8d994c3323ce8c088ced4c3de38f1a33548ea3c # 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 e8d994c3323ce8c088ced4c3de38f1a33548ea3c # timeout=10
 > git --version # timeout=10
 > git --version # 'git version 2.25.1'
fatal: bad object 4f8fd6a86e521290dafaf7c28eced2a9b21b220a