1.87.0

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.