iamlixiao [1] filed a deletion request for android-sources-32 [2]: Didn't notice there's already an android-sources package with same version of 32 when uploading this package. It is a duplicate and should be deleted. Apologies for the ignorance.
[1] https://aur.archlinux.org/account/iamlixiao/ [2] https://aur.archlinux.org/pkgbase/android-sources-32/