Console Output

09:41:26 [2020-01-23T09:41:26.029Z] using credential sf-release-bot.github.ssh
09:41:26 [2020-01-23T09:41:26.048Z] Cloning the remote Git repository
09:41:26 [2020-01-23T09:41:26.048Z] Cloning with configured refspecs honoured and without tags
09:41:26 [2020-01-23T09:41:26.089Z] Cloning repository git@github.com:docker/compose.git
09:41:26 [2020-01-23T09:41:26.149Z]  > git init /home/ubuntu/workspace/se_fix-windows-ci-python-version # timeout=10
09:41:26 [2020-01-23T09:41:26.626Z] Fetching upstream changes from git@github.com:docker/compose.git
09:41:26 [2020-01-23T09:41:26.626Z]  > git --version # timeout=10
09:41:26 [2020-01-23T09:41:26.653Z] using GIT_SSH to set credentials docker-jenkins user on github.com
09:41:26 [2020-01-23T09:41:26.765Z]  > git fetch --no-tags --progress -- git@github.com:docker/compose.git +refs/heads/fix-windows-ci-python-version:refs/remotes/origin/fix-windows-ci-python-version
09:41:31 [2020-01-23T09:41:31.013Z] Fetching without tags
09:41:31 [2020-01-23T09:41:31.405Z] Checking out Revision f2d8c610f18b9dc23f4e41e644ec076af4ebfa97 (fix-windows-ci-python-version)
09:41:30 [2020-01-23T09:41:30.908Z]  > git config remote.origin.url git@github.com:docker/compose.git # timeout=10
09:41:30 [2020-01-23T09:41:30.951Z]  > git config --add remote.origin.fetch +refs/heads/fix-windows-ci-python-version:refs/remotes/origin/fix-windows-ci-python-version # timeout=10
09:41:30 [2020-01-23T09:41:30.986Z]  > git config remote.origin.url git@github.com:docker/compose.git # timeout=10
09:41:31 [2020-01-23T09:41:31.023Z] Fetching upstream changes from git@github.com:docker/compose.git
09:41:31 [2020-01-23T09:41:31.023Z] using GIT_SSH to set credentials docker-jenkins user on github.com
09:41:31 [2020-01-23T09:41:31.024Z]  > git fetch --no-tags --progress -- git@github.com:docker/compose.git +refs/heads/fix-windows-ci-python-version:refs/remotes/origin/fix-windows-ci-python-version
09:41:31 [2020-01-23T09:41:31.408Z]  > git config core.sparsecheckout # timeout=10
09:41:31 [2020-01-23T09:41:31.427Z]  > git checkout -f f2d8c610f18b9dc23f4e41e644ec076af4ebfa97
09:41:32 [2020-01-23T09:41:32.404Z] Commit message: "Enforce Python37 in the creation of virtualenv"
09:41:32 [2020-01-23T09:41:32.404Z] First time build. Skipping changelog.
09:41:32 [2020-01-23T09:41:32.472Z] fatal: bad object 26028d2ce48352c9b2c3f496e963b79a4944a426