CompUnit::Repository::Perl5 ???

[ToddAndMargo via perl6-users]

$ raku -Msigpipe -e 'loop { say "y"}' | sed 3q
===SORRY!=== Error while compiling -e
Could not find sigpipe in:
    /home/tony/.raku
    /opt/rakudo-pkg/share/perl6/site
    /opt/rakudo-pkg/share/perl6/vendor
    /opt/rakudo-pkg/share/perl6/core
    CompUnit::Repository::AbsolutePath<71837872>
    CompUnit::Repository::NQP<63797000>
    CompUnit::Repository::Perl5<63797040>
at -e:1


Why are we looking in perl 5?