All tier 2 targets with host tools support the full standard library.
-**NOTE:** Tier 2 targets currently do not build the `rust-docs` component.
+**NOTE:** The `rust-docs` component is not usually built for tier 2 targets,
+so Rustup may install the documentation for a similar tier 1 target instead.
target | notes
-------|-------
[`no_std`]: https://rust-embedded.github.io/book/intro/no-std.html
-**NOTE:** Tier 2 targets currently do not build the `rust-docs` component.
+**NOTE:** The `rust-docs` component is not usually built for tier 2 targets,
+so Rustup may install the documentation for a similar tier 1 target instead.
target | std | notes
-------|:---:|-------