[perl #123347] $*OUT.t fails on rakudo-moar

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# New Ticket Created by  Sam S. 
# Please include the string:  [perl #123347]
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It works on Parrot, but on Moar it dies:

<smls> m: say $*OUT.t
<camelia> rakudo-moar 91d899: OUTPUT«Cannot find method 'isatty': no method 
cache and no .^find_method␤  in method t at src/gen/m-CORE.setting:15808␤  in 
block <unit> at /tmp/RrRl45JJjr:1␤␤»
<moritz> p: say $*OUT.t
<camelia> rakudo-parrot 91d899: OUTPUT«False␤»