fix(tests): update compiler output to the latest nightly

[m4tx]

No description provided.

[Copilot]

Pull request overview

Updates Rust UI test expectation files to match the latest nightly compiler diagnostics output format, keeping the test suite in sync with upstream rustc changes.

Changes:

• Refreshed expected stderr for an invalid request handler UI test to reflect updated type formatting and trait-impl help text.
• Refreshed expected stderr for a derive-macro UI test to reflect rustc’s newer “implementors” listing format (including workspace-qualified paths).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
cot/tests/ui/unimplemented_request_handler.stderr	Updates expected diagnostic output for invalid request handler errors to match nightly rustc formatting.
cot-macros/tests/ui/derive_api_operation_response_missing_trait_impl.stderr	Updates expected diagnostic output for missing ApiOperationResponse impl to match nightly rustc’s newer help/impl listing format.

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[github-actions]

Bencher Report

Project	cot
Branch	fix-snapshots
Testbed	github-ubuntu-latest

Click to view all benchmark results

Benchmark	Latency	Benchmark Result microseconds (µs) (Result Δ%)	Upper Boundary microseconds (µs) (Limit %)
empty_router/empty_router	📈 view plot 🚷 view threshold	13,786.00 µs (+73.45%) Baseline: 7,948.08 µs	14,750.67 µs (93.46%)
json_api/json_api	📈 view plot 🚷 view threshold	997.21 µs (-6.53%) Baseline: 1,066.89 µs	1,384.95 µs (72.00%)
nested_routers/nested_routers	📈 view plot 🚷 view threshold	971.99 µs (-2.40%) Baseline: 995.88 µs	1,263.08 µs (76.95%)
single_root_route/single_root_route	📈 view plot 🚷 view threshold	935.13 µs (-2.49%) Baseline: 959.04 µs	1,226.81 µs (76.22%)
single_root_route_burst/single_root_route_burst	📈 view plot 🚷 view threshold	16,573.00 µs (-3.59%) Baseline: 17,189.72 µs	21,743.12 µs (76.22%)

🐰 View full continuous benchmarking report in Bencher

[m4tx]

To be fair, I'm not entirely sure how come we were missing some snapshot test outputs, and how come they only cause problems in coverage tests. But I guess it's good it works now?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Flag	Coverage Δ
rust	90.35% <ø> (-0.07%)	⬇️

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see 3 files with indirect coverage changes

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[ElijahAhianyo]

To be fair, I'm not entirely sure how come we were missing some snapshot test outputs, and how come they only cause problems in coverage tests. But I guess it's good it works now?

Yeah, on second look, the newly generated snapshots seem to have existing counterparts that are exactly the same. I'm wondering how we were able to generate them when there's been no change.