Permission denied while mirroring from master.qt.io::qt-all

I tried to mirror "qt-all" with following command:
$ rsync -rlpt --delete --progress master.qt.io::qt-all --timeout=16 qt/

But there are some errors occurred during synchronization:
rsync: send_files failed to open "ministro/android/qt5/objects/5.71-armeabi-v7a/lib/libgnustl_shared.so" (in qt-all): Permission denied (13)
rsync: send_files failed to open "ministro/android/qt5/objects/5.71-x86/lib/libgnustl_shared.so" (in qt-all): Permission denied (13)

Best regards.
------------
Ji WenCong
taiki_akita@163.com