Console Output

09:51:08 using credential docker-jenkins-github-credentials
09:51:08 Cloning the remote Git repository
09:51:08 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-2506 # timeout=10
Fetching upstream changes from https://github.com/docker/docker-py.git
 > git --version # timeout=10
using GIT_ASKPASS to set credentials docker-jenkins GitHub credentials
 > git fetch --no-tags --progress -- https://github.com/docker/docker-py.git +refs/pull/2506/head:refs/remotes/origin/PR-2506 +refs/heads/release:refs/remotes/origin/release
09:51:10 Fetching without tags
09:51:10 Merging remotes/origin/release commit 66495870de024e61685a8eac9e13e0f7ca1ddee1 into PR head commit ab5678469c7d2dc73367a63b947aa84d16f36591
09:51:10 Merge succeeded, producing ab5678469c7d2dc73367a63b947aa84d16f36591
09:51:10 Checking out Revision ab5678469c7d2dc73367a63b947aa84d16f36591 (PR-2506)
09:51:10 Commit message: "Bump 4.2.0"
 > git config remote.origin.url https://github.com/docker/docker-py.git # timeout=10
 > git config --add remote.origin.fetch +refs/pull/2506/head:refs/remotes/origin/PR-2506 # timeout=10
 > git config --add remote.origin.fetch +refs/heads/release:refs/remotes/origin/release # 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 --progress -- https://github.com/docker/docker-py.git +refs/pull/2506/head:refs/remotes/origin/PR-2506 +refs/heads/release:refs/remotes/origin/release
 > git config core.sparsecheckout # timeout=10
 > git checkout -f ab5678469c7d2dc73367a63b947aa84d16f36591
 > git merge 66495870de024e61685a8eac9e13e0f7ca1ddee1 # timeout=10
 > git rev-parse HEAD^{commit} # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f ab5678469c7d2dc73367a63b947aa84d16f36591
fatal: bad object 26028d2ce48352c9b2c3f496e963b79a4944a426