Starting with Rust 1.100.0, 32-bit Windows targets are being demoted, removing support for host tools on these platforms. Developers will be required to use cross-compilation from 64-bit hosts to build 32-bit Windows binaries, as building compiler binaries natively on 32-bit hardware is no longer reliable or feasible.
Key points
Host tools for i686-pc-windows-msvc and i686-pc-windows-gnu are being deprecated.
Native compilation on 32-bit Windows hardware is no longer supported due to stability and resource constraints.
Cross-compilation from 64-bit Windows environments is the new standard workflow for 32-bit targets.
The standard library for 32-bit Windows will continue to be distributed.
