From @ShimmerFairy

[20​:47​:16] <lue <#lue>> rakudo​: say "8192".fmt{'%x'} <##wrong>

[20​:47​:18] <p6eval <#p6eval>> rakudo 395433​: OUTPUT«8?»

[20​:47​:35] <lue <#lue>> o-.o

[20​:48​:02] * lue <#lue> submits rakudobug (that's not what 0d8192 is in hex)

Actually, 0d8192 should be 0x2000 and therefore output 2000, not 8 :)

--
Don't Panic!

From @moritz

you are doing it wrong - .fmt is a normal method and should be called
with round parenthesis.

RT #​74112 already tracks the problem that strings are hash-indexable.

The RT System itself - Status changed from 'new' to 'open'

@moritz - Status changed from 'open' to 'rejected'