src/http/modules/ngx_http_uwsgi_module.c:2185: error: Uninitialized Value
  The value read from cv.lengths was never initialized.

src/http/modules/ngx_http_uwsgi_module.c:2185:9: 
2183.     }
2184. 
2185.     if (cv.lengths != NULL) {
              ^
2186. 
2187.         uwcf->upstream.cache_value = ngx_palloc(cf->pool,
