It's a well-known bug. Unfortunately we have some roadmap items to complete before we can fix that - we need to have static lexical pads at compile time to make built-in functions available in BEGIN blocks.
Perl 6 - links to (nearly) everything that is Perl 6.

In reply to Re^3: Perl6, modifying @*INC by moritz
in thread Perl6, modifying @*INC by molecules

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