## Blah blah blah whatever populates $dumper
my $dump_error = undef;
my %info;
if( not defined $dumper ) {
  $dump_error = 1;
  warn qq{Got undefined from dumper.\n};
} else {
  %info = %{ eval $dumper };
}

## Do something like this to handle the error (or if %info was empty, or . . .)
next if $dump_error or %info == 0;