Fixed with b0b2489a2cff7b56d61e8e , tests needed!
> On 25 Oct 2015, at 11:49, Shoichi Kaji (via RT)
> <perl6-bugs-follo...@perl.org> wrote:
>
> # New Ticket Created by Shoichi Kaji
> # Please include the string: [perl #126447]
> # in the subject line of all future correspondence about this issue.
> # <URL: https://rt.perl.org/Ticket/Display.html?id=126447 >
>
>
>> perl6 -v
> This is perl6 version 2015.10-19-gd192f1c built on MoarVM version 2015.10
>
>> perl6 -e '{ temp %*ENV<FOO> = "1" }; { temp %*ENV<BAR> = "1"; run "ls" }'
> Cannot unbox a type object
> in block <unit> at -e:1