Gitlab::ImportExport::Error: execution expired

https://sentry.gitlab.net/gitlab/gitlabcom/issues/2785290/?referrer=gitlab_plugin

Gitlab::ImportExport::Error: execution expired
  app/services/projects/import_export/export_service.rb:115:in `notify_error!'
    raise Gitlab::ImportExport::Error, shared.errors.to_sentence
  app/services/projects/import_export/export_service.rb:53:in `save_all!'
    notify_error!
  app/services/projects/import_export/export_service.rb:20:in `execute'
    save_all!
  app/services/concerns/measurable.rb:35:in `execute'
    measuring? ? ::Gitlab::Utils::Measuring.new(base_log_data).with_measuring { super(*args) } : super(*args)
  app/workers/project_export_worker.rb:24:in `perform'
    ::Projects::ImportExport::ExportService.new(project, current_user, params).execute(after_export)
...
(85 additional frame(s) were not displayed)

execution expired