chore: enforce nightly formatting

[Vaiz]

No description provided.

[Copilot]

Pull request overview

This PR updates the repository’s formatting checks to use nightly rustfmt with the repo’s unstable-rustfmt.toml, and applies the resulting formatting/import-order changes across multiple crates and documentation examples.

Changes:

• Run format checks with nightly rustfmt using --config-path ./unstable-rustfmt.toml (local just + CI).
• Update GitHub Actions to install nightly rustfmt and run formatting under the nightly toolchain.
• Apply consistent rustfmt-driven formatting/import grouping updates across source, tests, examples, and doc snippets.

Reviewed changes

Copilot reviewed 37 out of 39 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
justfiles/format.just	Switches just format / format-check to nightly rustfmt with --config-path unstable-rustfmt.toml.
.github/workflows/main.yml	Installs nightly rustfmt and runs cargo +nightly fmt using the unstable rustfmt config; removes stable rustfmt component from setup.
crates/templated_uri/src/uri.rs	Doc snippet import ordering / formatting updates.
crates/templated_uri/src/path_and_query_template.rs	Doc snippet import ordering updates.
crates/templated_uri/src/lib.rs	Reorders public re-exports and doc snippet import order (format-driven).
crates/templated_uri/src/base_uri.rs	Doc snippet formatting (line wrapping / indentation).
crates/templated_uri/src/_documentation/recipes.rs	Doc example formatting and import ordering.
crates/templated_uri/examples/classified_templating.rs	Import grouping/order changes.
crates/seatbelt/src/retry/mod.rs	Moves deprecated re-export to satisfy formatting/order.
crates/seatbelt/src/hedging/telemetry.rs	Import consolidation and test module import ordering.
crates/seatbelt/src/hedging/service.rs	Minor whitespace alignment in tests.
crates/seatbelt/src/hedging/mod.rs	Moves deprecated re-export to satisfy formatting/order.
crates/seatbelt/src/hedging/layer.rs	Consolidates constants imports.
crates/seatbelt/src/hedging/args.rs	Import ordering adjustment.
crates/seatbelt/src/fallback/mod.rs	Doc snippet formatting (one-line closure).
crates/seatbelt/src/fallback/layer.rs	Import grouping/order adjustment.
crates/seatbelt/src/context.rs	Import ordering/grouping adjustment.
crates/seatbelt/src/chaos/latency/mod.rs	Doc snippet formatting (method chain in one line).
crates/seatbelt/examples/retry_advanced.rs	Import grouping/order adjustment.
crates/recoverable/src/io.rs	Test import ordering adjustment.
crates/recoverable/src/_documentation/recipes.rs	Doc snippet formatting (multiline args).
crates/ohno/src/lib.rs	Re-export ordering adjustment.
crates/ohno/src/error_label.rs	Test import ordering adjustment.
crates/http_extensions/src/http_response_builder.rs	Doc snippet formatting (method chain wrapping).
crates/http_extensions/src/http_request_builder.rs	Doc snippet formatting (async chain wrapping).
crates/http_extensions/src/fake_handler.rs	Doc snippet indentation alignment.
crates/http_extensions/src/extensions/request_ext.rs	Import ordering adjustment.
crates/http_extensions/src/error.rs	Doc snippet indentation alignment.
crates/http_extensions/src/body/options.rs	Doc snippet formatting (method chain).
crates/http_extensions/src/body/builder.rs	Import ordering and test module import ordering.
crates/http_extensions/src/_documentation/recipes.rs	Doc snippet import ordering and formatting (wrapping).
crates/cachet/src/transform/tier.rs	Import ordering and test import ordering.
crates/cachet/src/transform/codec.rs	Doc snippet import ordering.
crates/cachet/src/policy.rs	Doc snippet formatting (closure wrapping).
crates/cachet/src/fallback.rs	Consolidates imports in tests.
crates/cachet_tier/src/dynamic.rs	Import ordering/grouping adjustment.
crates/cachet_memory/src/tier.rs	Import ordering adjustment.
crates/cachet_memory/src/builder.rs	Doc snippet import splitting/order.
crates/anyspawn/src/spawner.rs	Import consolidation and doc snippet formatting/wrapping.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.0%. Comparing base (3b9dd96) to head (ff373a6).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #407   +/-   ##
=======================================
  Coverage   100.0%   100.0%           
=======================================
  Files         227      227           
  Lines       16740    16740           
=======================================
  Hits        16740    16740           

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[geeknoid]

I don't think this is a good idea. It means that it would require devs to have nightly bits installed in order to be able to reliably make changes for this repo.

[Vaiz]

I don't think this is a good idea. It means that it would require devs to have nightly bits installed in order to be able to reliably make changes for this repo.

we need to enforce this if we want to avoid PRs with hundreds changed files just because developer applied nightly formatting on the whole repo

[Copilot]

Pull request overview

Copilot reviewed 26 out of 26 changed files in this pull request and generated no new comments.