git 504 error
git clone -b 0.4.0 --depth=1 --recursive https://gitlab.freedesktop.org/xorg/lib/libxcb-util.git
Cloning into 'libxcb-util'
fatal: unable to access 'https://gitlab.freedesktop.org/xorg/lib/libxcb-util.git/': The requested URL returned error: 504