Yes, perl --version outputs:

The production environment uses the same Perl.

When I first ran the script with -Mdiagnostics=-traceonly, I got about forty notices about harmless but slightly wrong usage. After I resolved these issues, all I am left with is:

Uncaught exception from user code:
        Can't resolve method "name" overloading """" in package "overl
+oad" at <file> line <line>.
 at <file> line <line>
[download]