関連ワード:  non zero exit code 255    non zero exit status 255    returned non zero exit status 255    returned non zero exit status 255 python    exited with non zero exit code 255 and signal 15    ssh returned non zero exit status 255    subprocess returned non zero exit status 255    command returned non zero exit status 255    scp returned non zero exit status 255    rsync returned non zero exit status 255