pc@pc-MRC-WX0:/var/www/html/zadanie$ symfony server:start -d

Version 4.8.1 is available. Do you want to update now (execution will continue after whatever you decide) ? [Y/n]: Y

Update notes:
  v4.8.1:
  - Fix broken ``project:scale`` and ``project:edit`` commands

Upgrading to 4.8.1
7.05 MiB / 7.05 MiB [===================================] 100.00% 4.99 MiB/s 1s
2019/10/24 14:32:55 Integrity check in 2343 from 2324.
Backup failed, rename /usr/local/bin/symfony /home/pc/.symfony/autoupdate/2019-10-24_14-32-55-a20b5b6-old: permission denied. Canceling upgrade.

Version 4.8.1 is available. Do you want to update now (execution will continue after whatever you decide) ? [Y/n]: Oct 24 14:33:00 |ERROR| SERVER Impossible to go to the background error="reexec timed out"
Oct 24 14:33:00 |INFO | SERVER Continue in foreground
                                                                                                                        
[OK] Web server listening on https://127.0.0.1:8000 (PHP FPM 7.2.19)