matrix execution fails due to "remote contains work that you do not have locally"

Hi, I have a workflow with a matrix strategy, composed of four different cases which run in parallel.

I am randomly getting errors

Push the commit or tag

  /usr/bin/git push origin gh-pages
  To https://github.com/FEMlium/femlium.github.io.git
   ! [rejected]        gh-pages -> gh-pages (fetch first)
  error: failed to push some refs to '***github.com/FEMlium/femlium.github.io.git'
  hint: Updates were rejected because the remote contains work that you do
  hint: not have locally. This is usually caused by another repository pushing
  hint: to the same ref. You may want to first integrate the remote changes
  hint: (e.g., 'git pull ...') before pushing again.
  hint: See the 'Note about fast-forwards' in 'git push --help' for details.
  Error: Action failed with "The process '/usr/bin/git' failed with exit code 1"

(e.g. in https://github.com/FEMlium/FEMlium/runs/2519718493?check_suite_focus=true)

I guess this happens when two jobs are trying to push to the repository at almost the same time. Is there a way to force the action to do a git fetch before it tries to do a git push?

My error is quite close to #104, but I think my workflow is different than the one reported there. The one reported there was having a multi-execution of the action in the same workflow; instead I have a single execution of the action in parallel workflows.

Thanks!

[francesco-ballarin]

Thanks @peaceiris, I’ll change my workflow to use artifacts!

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