From @gfldex

# https://gist.github.com/gfldex/87e6af28194e5389a8f2

# the-lib.pm6
sub EXPORT() {
  { 'Anon' => class {} }
}

# lib-loader.p6
use v6;
use lib '.';
use the-lib;

# OUTPUT
# ===SORRY!===
# When invoking cuid_1_1452682916.69 '', provided outer frame 0x44f5f80
# (cuid_3_1452682916.69 'EXPORT') does not match expected static frame
# 0x44b20f0 (cuid_2_1452682916.69 '')

# Expected
# either having an empty class called Anon in the scope of lib-loader.p6
# or a proper error message