ERR_EMPTY_RESPONSE on nginx

server{
    listen80;
    server_name localhost;

    # charset koi8-r;
    # access_log/var/log/nginx/log/host.access.log main;

    location / {
        # root/usr/share/nginx/html;
        # index index.html index.htm;
        proxy_pass http://127.0.0.1:60000/;
    }

    # error_page404/404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page500502503504/50x.html;
    location=/50x.html{
        root/usr/share/nginx/html;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    # location~\.php${
    #    proxy_pass http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1—9000
    #
    # location~\.php${
    #    roottml;
    #    fastcgi_pass 127.0.0.1:9000;
    #    fastcgi_index index.php;
    #    fastcgi_param SCRIPT_FILENAME/scripts$fastcgi_script_name;
    #    include fastcgi_params;
    #}

    # deny access to.htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    # location~/\.ht{
    #    deny all;
    #}
}

package main

import(
    "github.com/labstack/echo"
    mw "github.com/labstack/echo/middleware"
    "github.com/thoas/stats"
    "os"
)

funcmain(){
    e: = echo.New()

    // Middleware.
    e.Use(mw.Logger())
    e.Use(mw.Recover())
    e.Use(mw.Gzip())
    s: = stats.New()
    e.Use(s.Handler)

    // Index page.
    e.Index("public/")

    // Static files.
    e. Static("/js", "public/js")
    e. Static("/css", "public/css")
    e. Static ("/images", "public/images")

    if port: =os.Getenv("PORT"); port!="{
        e.Run(":"+port)
    } else{
        e.Run (":3000")
    }
}

INFO|echo|127.0.0.1 GET/20051.487429ms13820
INFO|echo|127.0.0.1 GET/2009.556293ms13820
INFO|echo|127.0.0.1 GET/2008.84661ms13820

usernginx;
worker_processes1;

error_log/var/log/nginx/error.log warn;
pid/var/run/nginx.pid;


events {
    worker_connections1024;
}


US>http{
    include/etc/nginx/mime.types;
    default_type application/octet-stream;

    log_format main'$remote_addr-$remote_user[$time_local]"$request"'
                      '$status$body_bytes_sent"$http_refer"'
                      '''$http_user_agent''''$http_x_forwarded_for";

    access_log/var/log/nginx/access.log main;

    sendfile on;
    # tcp_nopush on;

    keepalive_timeout65;

    #gzip on;

    include/etc/nginx/conf.d/*.conf;
}

February 11, 2016 04:32:39 [notice] 29316#0:signal process started
February 11, 2016 04:32:45 [alert] 23756 #0:worker process 29319 expired on signal 11
February 11, 2016 04:32:46 [alert] 23756 #0:worker process 29324 expired on signal 11
February 110 07:09:02 [error] 29320 #0:*241 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.10.100, server:localhost, request: "GET/HTTP/1.1", upstream: "http://127.0.0.1:60000/", host:10.1682.

01:02:40.058334 IP (tos0x0, ttl64, id33406, offset0, flags [DF], proto TCP(6), length471)
    192.168.10.100.56136> 192.168.10.105.http: Flags [P.], cksum0x9494 (correct), seq1:420, ack1, win4117, options [nop, nop, TSval300422591ecr15850679], length 419
E.......@.@....
d..
i.H.P..Y....X........
........GET/HTTP/1.1
Host: 192.168.10.105
Connection:keep-alive
Cache-Control: max-age = 0
Accept: text/html, application/xhtml+xml, application/xml;q=0.9, image/webp, */*;q=0.8
Upgrade-Insecure-Requests:1
User-Agent: Mozilla / 5.0 (Intel Mac OS X 10_11_3) Apple WebKit / 537.36 (KHTML, like Gecko) Chrome / 47.0.2526.111 Safari / 537.36
Accept-Encoding: gzip, deflate, sdch
Accept-Language: ja, en-US; q = 0.8, en; q = 0.6