In general, the output is now:
01:55 r: my $l = 3; say "x" x 10 ~~ / x ** {$l} /
01:55 rakudo-parrot 79167a, rakudo-jvm 79167a, rakudo-moar 79167a:
OUTPUT«===SORRY!=== Error while compiling
/tmp/tmpfileBlock case of ** quantifier not yet implementedat
/tmp/tmpfile:1--> m
# New Ticket Created by Moritz Lenz
# Please include the string: [perl #73172]
# in the subject line of all future correspondence about this issue.
# http://rt.perl.org/rt3/Ticket/Display.html?id=73172 >
$ ./perl6 -e 'say "abcd" ~~ m/[abc]**{5}/ '
abc
not good...