Console Output

17:54:54 The recommended git tool is: git
17:54:56 using credential docker-jenkins-github-credentials
17:54:56 Cloning the remote Git repository
17:54:56 Cloning with configured refspecs honoured and without tags
Cloning repository https://github.com/docker/docker-py.git
 > git init /home/ubuntu/workspace/docker-py_PR-3009 # timeout=10
Fetching upstream changes from https://github.com/docker/docker-py.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-py.git +refs/pull/3009/head:refs/remotes/origin/PR-3009 +refs/heads/master:refs/remotes/origin/master # timeout=10
17:54:58 Fetching without tags
17:54:59 Merging remotes/origin/master commit 7168e09b1628b85a09e95cf8bae6bfd94b61a6c4 into PR head commit 3ffdd8a1c52cb7677d926feaf1a44d585a066dac
17:54:59 Merge succeeded, producing 3ffdd8a1c52cb7677d926feaf1a44d585a066dac
17:54:59 Checking out Revision 3ffdd8a1c52cb7677d926feaf1a44d585a066dac (PR-3009)
 > git config remote.origin.url https://github.com/docker/docker-py.git # timeout=10
 > git config --add remote.origin.fetch +refs/pull/3009/head:refs/remotes/origin/PR-3009 # 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-py.git # timeout=10
Fetching upstream changes from https://github.com/docker/docker-py.git
using GIT_ASKPASS to set credentials docker-jenkins GitHub credentials
 > git fetch --no-tags --force --progress -- https://github.com/docker/docker-py.git +refs/pull/3009/head:refs/remotes/origin/PR-3009 +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 3ffdd8a1c52cb7677d926feaf1a44d585a066dac # 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 7168e09b1628b85a09e95cf8bae6bfd94b61a6c4 # timeout=10
 > git rev-parse HEAD^{commit} # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 3ffdd8a1c52cb7677d926feaf1a44d585a066dac # timeout=10
17:55:03 Commit message: "lint: fix outstanding flake8 violations"
 > git --version # timeout=10
 > git --version # 'git version 2.25.1'
fatal: bad object 5d8b74fd03a1c7cc00e1c1f32d100ed97a17f4f0