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Rollup merge of #142672 - Kobzol:bootstrap-tool-clarification, r=jieyouxu 

Clarify bootstrap tools description

The existence of `stage0-bootstrap-tools` suggests the possiblity of `stage1/N-bootstrap-tools`, but that's not really a thing. Also it doesn't fit the new bootstrap model, where `stageN` essentially means that it was built with a `stageN-1` compiler (except for std).

r? ``@jieyouxu``
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Jakub Beránek 2025-06-18 18:06:54 +02:00 committed by GitHub
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src/building/bootstrapping/writing-tools-in-bootstrap.md
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@ -4,7 +4,7 @@ There are three types of tools you can write in bootstrap:
- **`Mode::ToolBootstrap`** - **`Mode::ToolBootstrap`**
Use this for tools that don’t need anything from the in-tree compiler and can run with the stage0 `rustc`. Use this for tools that don’t need anything from the in-tree compiler and can run with the stage0 `rustc`.
The output is placed in the "stage0-bootstrap-tools" directory. This mode is for general-purpose tools built The output is placed in the "bootstrap-tools" directory. This mode is for general-purpose tools built
entirely with the stage0 compiler, including target libraries and only works for stage 0. entirely with the stage0 compiler, including target libraries and only works for stage 0.
- **`Mode::ToolStd`** - **`Mode::ToolStd`**