The .log is 21.4MB long uncompressed, don't think any pastebin service allows that... I can upload it somewhere else than tinyupload if you tell me a better service.
I started over (deleted lede folder, redownloaded everything) serveral times with -j1 and yes, i still get the same error.
I noticed that error too but i don't understand it, i didn't include those packages unless they come with LuCi, because together with wpad, aircrack-ng and airmon-ng they are only packages i'm selecting on menuconfig.
NOTE: some utilities provided by procps-ng packages (ps, uptime, kill, ...) are installed as busybox applets, by default. Conflicting applets should be removed from the build to avoid file conflicts.
i restored the router, and wanting to start a fresh install but whenever i run the install luci command i get
* check_data_file_clashes: Package libubox20170601 wants to install file /lib/libubox.so
But that file is already provided by package * libubox
* opkg_install_cmd: Cannot install package luci-ssl-openssl.
and even with other cmd still get the first line, but not sure why the package blocks the install