From @masak

<masak> rakudo​: my $pair = "OH HAI" => 42; my (Pair (​:$key, :$value))
:= $pair; .say for $key, $value
<p6eval> rakudo d35769​: OUTPUT«Mu()␤Mu()␤»
<masak> better, though.
<moritz_> I think the Capturification of Pair is broken
<jnthn> rakudo​: my $pair = "OH HAI" => 42; say $pair.Capture.perl
<p6eval> rakudo d35769​: OUTPUT«\()␤»
<moritz_> right
<jnthn> Yeah
<jnthn> That's the real issue.
<jnthn> It woulda worked if that had.
* masak submits rakudobug

From @moritz

Works now, and tested in t/spec/S02-types/capture.t.

@moritz - Status changed from 'new' to 'resolved'