1.86.0

First release built using Tiny Core Linux 16.0 instead of Debian Latest.

The docker image which built this can be found here
Note that it is big. Once pulled and uncompressed, it can take 40 GB or more.
I included the interesting files (build-log.txt, config.toml) in this release.

rust-x.y.z-i586-unknown-linux-gnu.tar.gz contains the toolchain which can run
on an i586 CPU.
I'm using it for retro-computing in the tcl-core-rust-i586 git repo
and with a ThinkPad 560z. There, I build the .tcz files that can be used
with Tiny Core Linux to load rust and use it.