Console Output

00:04:32 The recommended git tool is: git
00:04:34 using credential docker-jenkins-github-credentials
00:04:34 Cloning the remote Git repository
00:04:34 Cloning with configured refspecs honoured and without tags
00:04:35 Fetching without tags
Cloning repository https://github.com/docker/docker-ce-packaging.git
 > git init /home/ubuntu/workspace/docker-ce-packaging_PR-644 # 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/644/head:refs/remotes/origin/PR-644 +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/644/head:refs/remotes/origin/PR-644 # 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/644/head:refs/remotes/origin/PR-644 +refs/heads/master:refs/remotes/origin/master # timeout=10
00:04:36 Merging remotes/origin/master commit 851150a42fb08bf57f59dcdf35daec583f00cd84 into PR head commit 7b18d53b23516b75ee1f9252120d4bb98b965f67
00:04:36 Merge succeeded, producing 2b006dbcf1fe9ec002a642274d485a28e7f12636
00:04:36 Checking out Revision 2b006dbcf1fe9ec002a642274d485a28e7f12636 (PR-644)
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 7b18d53b23516b75ee1f9252120d4bb98b965f67 # 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 851150a42fb08bf57f59dcdf35daec583f00cd84 # timeout=10
 > git rev-parse HEAD^{commit} # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 2b006dbcf1fe9ec002a642274d485a28e7f12636 # timeout=10
00:04:40 Commit message: "Merge commit '851150a42fb08bf57f59dcdf35daec583f00cd84' into HEAD"
00:04:40 First time build. Skipping changelog.
 > git --version # timeout=10
 > git --version # 'git version 2.17.1'
fatal: bad object 5d8b74fd03a1c7cc00e1c1f32d100ed97a17f4f0