try {
     die "test";
     CATCH {
         say $!;
         die "exp: [$!]";
     }
}

##</code><code>##

test
exp: [test]
exp: [exp: [test]]
exp: [exp: [exp: [test]]]
exp: [exp: [exp: [exp: [test]]]]
exp: [exp: [exp: [exp: [exp: [test]]]]]
exp: [exp: [exp: [exp: [exp: [exp: [test]]]]]]
exp: [exp: [exp: [exp: [exp: [exp: [exp: [test]]]]]]]
. . .