Remove Windows i686 special case from can_run#4935
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While it is possible to run a 32-bit toolchain on a 64-bit host, it is strongly discouraged. If needed, the user can use `--force-non-host` to install it anyway.
ChrisDenton
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can_runcan_run
djc
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Jul 2, 2026
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@rami3l maybe this is worth backporting if it's not too much work? |
rami3l
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Jul 2, 2026
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@djc Yeah it's okay for a 3rd round of backport. I'll utilize the lack of contention and do it as a part of the changelog update if you agree. |
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While it is possible to run a 32-bit toolchain on a 64-bit host, it is strongly discouraged. If needed, the user can use
--force-non-hostto install it anyway. Note that Windows is the only target that has this particular special case.Demoting 32-bit host to tier 2 is currently being discussed and so I think rustup should be updated before that change.
This does not affect installing and using
i686as a target. Rust fully supports cross-compiling from a 64-bit Windows host to ani686-windowstarget and will likely always do so.