[perl #66152] Rakudo consumes excessive resources for a simple loop

[Will Coleda via RT]

So, the original p5 code was:

#!/usr/bin/perl -w
my $i = 0;
my @numbers;
until ( $i == 100000 ) {
  $numbers[$i] = $i;
  $i++;
}

p6 code was:

use v6;
my Int $i = 0;
my @numbers;
until ( $i == 100000 ) {
  @numbers[$i] = $i;
  $i++;
}

OP gave the following one-shot benchmark numbers:

Perl5: ~0.07s to complete, uses 26KB RAM at completion.
Rakudo Perl6: ~1m14s to complete, uses 1.4GB RAM at completion.