fastlane: upload_symbols_to_crashlytics returning Shell command exited with exit status instead of 0.

New Issue Checklist

• Updated fastlane to the latest version
• I read the Contribution Guidelines
• I read docs.fastlane.tools
• I searched for existing GitHub issues

Issue Description

I wrote a script to automate the process of download dSYMs and update it to Crashlytics. It has been working perfectly for a long period but stopped working in the last 3 updates.

The terminal returns Shell command exited with exit status instead of 0. when the command upload_symbols_to_crashlytics finishes. It also returns Successfully uploaded dSYM files to Crashlytics 💯 at the end but I am not sure if it is really uploading.

Command executed

desc "Refresh all dSYMs of all schemes"
lane :refreshDsyms do
  POSSIBLE_IDENTIFIER_ARRAY.each_with_index do |identifier, index|
    download_dsyms(app_identifier: identifier, version: 'latest') # Download dSYM files from iTC
    outputs = lane_context[SharedValues::DSYM_PATHS]
    if outputs.length > 1 then
      outputs.delete_at(0)
    end
    outputs.each do |output|
      upload_symbols_to_crashlytics(
        api_token: ENV["FABRIC_API_KEY"],
        gsp_path: "./GoogleService-Info-#{GPS_ARRAY[index]}.plist",
        dsym_path: output)# Upload them to Crashlytics
    end
    clean_build_artifacts # Delete the local dSYM files
  end
end

Environment

desc "Refresh all dSYMs of all schemes to Crashlytics"
lane :refreshDsyms do
  POSSIBLE_IDENTIFIER_ARRAY.each_with_index do |identifier, index|
    download_dsyms(app_identifier: identifier, version: 'latest') # Download dSYM files from iTC
    outputs = lane_context[SharedValues::DSYM_PATHS]
    if outputs.length > 1 then
      outputs.delete_at(0)
    end
    puts outputs
    outputs.each do |output|
      upload_symbols_to_crashlytics(
        api_token: ENV["FABRIC_API_KEY"],
        gsp_path: "./GoogleService-Info-#{GPS_ARRAY[index]}.plist",
        dsym_path: output)# Upload them to Crashlytics
    end
    clean_build_artifacts # Delete the local dSYM files
  end
end

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