`[.rotate(-1)]` parsed as a reduction, not an array

[masak]

<TimToady> perl6: .say for ([1, 0 xx 5-1], { [.rotate(-1)] } ... *)[^5] 
<p6eval> niecza v15-6-gefda208: OUTPUT«===SORRY!===␤␤Method call found where infix expected (change whitespace?) at /tmp/jJEchhwcQ9 line 1:␤------> .say for ([1, 0 xx 5-1], { [⏏.rotate(-1)] } ... *)[^5]␤␤Parse failed␤␤»
<p6eval> ..rakudo 4373f0: OUTPUT«1 0 0 0 0␤0 1 0 0 0␤0 0 1 0 0␤0 0 0 1 0␤0 0 0 0 1␤»
<TimToady> huh, niecza is trying to parse it as a reduction
<TimToady> perl6: .say for ([1, 0 xx 5-1], { [ .rotate(-1) ] } ... *)[^5] 
<p6eval> rakudo 4373f0, niecza v15-6-gefda208: OUTPUT«1 0 0 0 0␤0 1 0 0 0␤0 0 1 0 0␤0 0 0 1 0␤0 0 0 0 1␤»
* masak submits nieczaissue