EV: error in callback (ignoring): AnyEvent::Handle uncaught error: Broken pipe at /Users/miyagawa/perl5/lib/perl5/darwin-thread-multi-2level/EV.pm line 1134
        EV::__ANON__() called at /Users/miyagawa/perl5/lib/perl5/AnyEvent/Impl/EV.pm line 77
        eval {...} called at /Users/miyagawa/perl5/lib/perl5/AnyEvent/Impl/EV.pm line 77
        AnyEvent::Impl::EV::one_event('AnyEvent') called at /Users/miyagawa/perl5/lib/perl5/AnyEvent.pm line 1680
        AnyEvent::CondVar::Base::_wait('AnyEvent::CondVar=HASH(0xd44cd4)') called at /Users/miyagawa/perl5/lib/perl5/AnyEvent.pm line 1684
        AnyEvent::CondVar::Base::recv('AnyEvent::CondVar=HASH(0xd44cd4)') called at ../Plack-Server-AnyEvent/lib/Plack/Server/AnyEvent.pm line 471
        Plack::Server::AnyEvent::run('Plack::Server::AnyEvent=HASH(0xd06f70)', 'CODE(0xd06a24)') called at /Users/miyagawa/perl5/bin/plackup line 52