Console Output

15:23:57 The recommended git tool is: git
15:23:57 using credential docker-jenkins-github-credentials
15:23:57 Cloning the remote Git repository
15:23:57 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-714 # 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/714/head:refs/remotes/origin/PR-714 +refs/heads/master:refs/remotes/origin/master # timeout=10
15:23:57 Fetching without tags
15:23:57 Merging remotes/origin/master commit a772dcde9fc8fbd9d48cf025c59416d28454ddb9 into PR head commit 3164a49a1577157069c8c723f5644521b036a6b3
15:23:57 Merge succeeded, producing 3164a49a1577157069c8c723f5644521b036a6b3
15:23:57 Checking out Revision 3164a49a1577157069c8c723f5644521b036a6b3 (PR-714)
15:23:58 Commit message: "Makefile: set initial branch name"
 > git config remote.origin.url https://github.com/docker/docker-ce-packaging.git # timeout=10
 > git config --add remote.origin.fetch +refs/pull/714/head:refs/remotes/origin/PR-714 # 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/714/head:refs/remotes/origin/PR-714 +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 3164a49a1577157069c8c723f5644521b036a6b3 # 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 a772dcde9fc8fbd9d48cf025c59416d28454ddb9 # timeout=10
 > git rev-parse HEAD^{commit} # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 3164a49a1577157069c8c723f5644521b036a6b3 # timeout=10
 > git --version # timeout=10
 > git --version # 'git version 2.25.1'
fatal: bad object 5d8b74fd03a1c7cc00e1c1f32d100ed97a17f4f0