- Output for 8.1.0 - 8.1.29, 8.2.0 - 8.2.21, 8.3.0 - 8.3.9
- Output for 7.3.31
- Fatal error: Declaration of ChildType::accept(ChildVisitor $visitor): mixed must be compatible with ParentType::accept(ParentVisitor $visitor): mixed in /in/O7F8n on line 12
Process exited with code 255.