Engine::_Execute(..\..\perl\modules/Engine.pm:122):
122: unless (fork) {
  DB<1> s
Bizarre SvTYPE [37] at ..\..\perl\modules/Engine.pm line 122.
Engine::_Execute(C:/Perl/lib/Carp.pm:97):
97:  { local $@; require Carp::Heavy; }  # XXX fix require to not clear $@?