xantares [1] filed a deletion request for mingw-w64-icu5x [2]:
mingw-w64-icu got reverted to 57.1 which can be built using stable crt
[1] https://aur.archlinux.org/account/xantares/ [2] https://aur.archlinux.org/pkgbase/mingw-w64-icu5x/
Request #10666 has been accepted by Alad [1].
aur-requests@lists.archlinux.org