Console Output

using credential docker-jenkins-github-credentials
Cloning the remote Git repository
Cloning with configured refspecs honoured and without tags
Cloning repository https://github.com/docker/cli.git
 > git init /home/ubuntu/workspace/cli_PR-2871 # timeout=10
Fetching upstream changes from https://github.com/docker/cli.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/cli.git +refs/pull/2871/head:refs/remotes/origin/PR-2871 +refs/heads/master:refs/remotes/origin/master # timeout=10
Fetching without tags
Merging remotes/origin/master commit beab92999ad3aeba9da197b8e29b1dcb3a1345f2 into PR head commit c54aec5c854b5492c1a0bbe2c3384ea580e973c8
Merge succeeded, producing c54aec5c854b5492c1a0bbe2c3384ea580e973c8
Checking out Revision c54aec5c854b5492c1a0bbe2c3384ea580e973c8 (PR-2871)
 > git config remote.origin.url https://github.com/docker/cli.git # timeout=10
 > git config --add remote.origin.fetch +refs/pull/2871/head:refs/remotes/origin/PR-2871 # 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/cli.git # timeout=10
Fetching upstream changes from https://github.com/docker/cli.git
using GIT_ASKPASS to set credentials docker-jenkins GitHub credentials
 > git fetch --no-tags --progress -- https://github.com/docker/cli.git +refs/pull/2871/head:refs/remotes/origin/PR-2871 +refs/heads/master:refs/remotes/origin/master # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f c54aec5c854b5492c1a0bbe2c3384ea580e973c8 # 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 beab92999ad3aeba9da197b8e29b1dcb3a1345f2 # timeout=10
 > git rev-parse HEAD^{commit} # timeout=10
 > git config core.sparsecheckout # timeout=10
 > git checkout -f c54aec5c854b5492c1a0bbe2c3384ea580e973c8 # timeout=10
Commit message: "vendor: BuildKit v0.8.0"
First time build. Skipping changelog.
 > git --version # timeout=10
 > git --version # 'git version 2.17.1'
fatal: bad object 5d8b74fd03a1c7cc00e1c1f32d100ed97a17f4f0