src/http/ngx_http_upstream.c:4079: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `ngx_http_upstream_finalize_request`.

src/http/ngx_http_upstream.c:4079:5: Call
4077.                    "cleanup http upstream request: \"%V\"", &r->uri);
4078. 
4079.     ngx_http_upstream_finalize_request(r, r->upstream, NGX_DONE);
          ^
4080. }
4081. 

src/http/ngx_http_upstream.c:4083:1: Parameter `r->main->count`
  4081. 
  4082. 
  4083. static void
        ^
  4084. ngx_http_upstream_finalize_request(ngx_http_request_t *r,
  4085.     ngx_http_upstream_t *u, ngx_int_t rc)

src/http/ngx_http_upstream.c:4094:9: Call
  4092.     if (u->cleanup == NULL) {
  4093.         /* the request was already finalized */
  4094.         ngx_http_finalize_request(r, NGX_DONE);
                ^
  4095.         return;
  4096.     }

src/http/ngx_http_request.c:2261:1: Parameter `r->main->count`
    2259. 
    2260. 
    2261. void
          ^
    2262. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
    2263. {

src/http/ngx_http_request.c:2427:9: Call
    2425.     }
    2426. 
    2427.     if (ngx_http_post_action(r) == NGX_OK) {
                  ^
    2428.         return;
    2429.     }

src/http/ngx_http_request.c:3348:1: <LHS trace>
3346. 
3347. 
3348. static ngx_int_t
      ^
3349. ngx_http_post_action(ngx_http_request_t *r)
3350. {

src/http/ngx_http_request.c:3348:1: Parameter `r->main->count`
      3346. 
      3347. 
      3348. static ngx_int_t
            ^
      3349. ngx_http_post_action(ngx_http_request_t *r)
      3350. {

src/http/ngx_http_request.c:3366:5: Binary operation: ([0, +oo] - 1):unsigned32 by call to `ngx_http_upstream_finalize_request` 
      3364.                    "post action: \"%V\"", &clcf->post_action);
      3365. 
      3366.     r->main->count--;
                ^
      3367. 
      3368.     r->http_version = NGX_HTTP_VERSION_9;
