hwittenborn [1] filed a deletion request for checkra1n-cn [2]: Seems to try to look like the official package(checkra.in), but doesn't include the URL for it in the PKGBUILD(or scripts contained within it).
[1] https://aur.archlinux.org/account/hwittenborn/ [2] https://aur.archlinux.org/pkgbase/checkra1n-cn/
