This is slightly patterned after what OpenBSD has done.

This is a step along the path to reduce the number and amount
of diffs that pkgsrc carries around for rust, and this documents
also some parts which have not yet been upstreamed (mipsel-*).

Add translatable diagnostic for cannot be reexported error
also added for subdiagnostics

Add translatable diagnostics for resolve_glob_import errors

Add translatable diag for unable to determine import resolution

Add translatable diag for is not directly importable

In particular, this hides compiletest suites under a dropdown - some builders are configured with `verbose-tests`, which makes the suites take up many thousands of lines.

before:
```
Documenting stage1 cargo (x86_64-unknown-linux-gnu)
Check compiletest suite=rustdoc-js mode=js-doc-test (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
```

after:
```
::group::Documenting stage1 cargo (x86_64-unknown-linux-gnu)
::group::Testing stage1 compiletest suite=rustdoc-js mode=js-doc-test (x86_64-unknown-linux-gnu)
```

Add support for NetBSD/aarch64-be (big-endian arm64).

Add esp-idf missing targets

Adds some esp-idf missing targets to the table

…umeGomez

doc: loongarch: Update maintainers

My colleague, `@zhaixiaojuan,` has been completely occupied with other matters and is no longer in charge of Rust. Consequently, I intend to update the maintainers in the platform documentation to avoid causing any disruptions for her and to ensure that relevant notifications regarding LoongArch are promptly directed to the appropriate developers.

Thanks your for contributions!

…ark-Simulacrum

CI: cancel in-progress workflow runs after a push

Experimenting with the `concurrency` attribute.

r? `@Mark-Simulacrum`

…ve_imports, r=fee1-dead

Rewrite most diagnostics as translatable within resolve/imports

Switch some more Steps to `builder.msg`

In particular, this hides compiletest suites under a dropdown - some builders are configured with `verbose-tests`, which makes the suites take up many thousands of lines.

before:
```
Documenting stage1 cargo (x86_64-unknown-linux-gnu)
Check compiletest suite=rustdoc-js mode=js-doc-test (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
```

after:
```
::group::Documenting stage1 cargo (x86_64-unknown-linux-gnu)
::group::Testing stage1 compiletest suite=rustdoc-js mode=js-doc-test (x86_64-unknown-linux-gnu)
```

found this from https://github.com/rust-lang-ci/rust/actions/runs/5366993848/jobs/9736792611

r? `@oli-obk`