These files are available for i3-wm-dbg 4.21-1+g4.21-3-gf0856c281:

Architecture Distributions Size
amd64
i3-wm-dbg_4.21-1+g4.21-3-gf0856c281_amd64.deb 		all 951.1 KB
i386
i3-wm-dbg_4.21-1+g4.21-3-gf0856c281_i386.deb 		all 837.8 KB
Date