fix: macs build

src/nightwatch.zig

@@ -411,7 +411,11 @@ const FSEventsBackend = struct {
                 .modified
             else
                 continue;
-            ctx.handler.change(path, event_type);
+            ctx.handler.change(path, event_type) catch |e| switch (e) {
+                error.HandlerFailed => {
+                    std.log.err("nightwatch.callback failed: {t}", .{e});
+                },
+            };
         }
     }
 

src/nightwatch_test.zig

@@ -166,7 +166,7 @@ fn drainEvents(watcher: *Watcher) !void {
     if (builtin.os.tag == .linux) {
         try watcher.handle_read_ready();
     } else {
-        std.time.sleep(300 * std.time.ns_per_ms);
+        std.Thread.sleep(300 * std.time.ns_per_ms);
     }
 }