[perl #78258] [BUG] %*ENV doesn't work from within a use'd module in Rakudo

[Carl Mäsak]

# New Ticket Created by  "Carl Mäsak" 
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mberends++ reports the following bug:

$ cat testenv.pm6

print 'Test existence of %*ENV<PERL6LIB>: ';
print %*ENV.exists('PERL6LIB');
say " OK, still alive";

$ rakudo testenv.pm6

Test existence of %*ENV<PERL6LIB>: Bool::True OK, still alive

$ rakudo -e 'use testenv'

Test existence of %*ENV<PERL6LIB>: Method 'exists' not found for
invocant of class 'Failure'
  in main program body at line 2:testlib.pm6

...

In other words, %*ENV doesn't exist early enough for it to work within
a use'd module.