Cache: lock timeouts are now logged at info level.
diff --git a/src/http/ngx_http_file_cache.c b/src/http/ngx_http_file_cache.c
index eacca59..cf27683 100644
--- a/src/http/ngx_http_file_cache.c
+++ b/src/http/ngx_http_file_cache.c
@@ -445,8 +445,7 @@
     timer = c->wait_time - ngx_current_msec;
 
     if ((ngx_msec_int_t) timer <= 0) {
-        ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0,
-                       "http file cache lock timeout");
+        ngx_log_error(NGX_LOG_INFO, ev->log, 0, "cache lock timeout");
         c->lock = 0;
         goto wakeup;
     }