New comment by ericonr on void-packages repository https://github.com/void-linux/void-packages/pull/24643#issuecomment-686636092 Comment: I'm not sure it's fully related... If you set `XBPS_CHROOT_CMD=uchroot` in `etc/conf`, things still work just fine, unless you also add `-t` to the `xbps-src` command line. So it's not because you're using `xbps-uchroot`, it's because you're using overlayfs.