Update Rust crate scc to v3

[hash-worker]

This PR contains the following updates:

Package	Type	Update	Change	Pending
scc	workspace.dependencies	major	2.4.0 -> 3.0.0	3.6.12

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

Configuration

📅 Schedule: Branch creation - "before 4am every weekday,every weekend" (UTC), Automerge - "before 4am every weekday,every weekend" (UTC).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Renovate Bot.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.50%. Comparing base (a70891f) to head (6ffbfc6).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8131      +/-   ##
==========================================
- Coverage   62.50%   62.50%   -0.01%     
==========================================
  Files        1318     1318              
  Lines      134219   134224       +5     
  Branches     5518     5518              
==========================================
  Hits        83895    83895              
- Misses      49409    49414       +5     
  Partials      915      915              

Flag	Coverage Δ
apps.hash-ai-worker-ts	1.40% <ø> (ø)
apps.hash-api	0.00% <ø> (ø)
blockprotocol.type-system	40.84% <ø> (ø)
local.claude-hooks	0.00% <ø> (ø)
local.harpc-client	51.24% <ø> (ø)
local.hash-graph-sdk	9.63% <ø> (ø)
local.hash-isomorphic-utils	0.00% <ø> (ø)
rust.antsi	0.00% <ø> (ø)
rust.error-stack	90.87% <ø> (ø)
rust.harpc-codec	84.70% <ø> (ø)
rust.harpc-types	0.00% <ø> (ø)
rust.harpc-wire-protocol	92.23% <ø> (ø)
rust.hash-codec	72.76% <ø> (ø)
rust.hash-graph-authorization	62.34% <ø> (ø)
rust.hash-graph-postgres-store	26.38% <ø> (-0.01%)	⬇️
rust.hash-graph-store	37.76% <ø> (ø)
rust.hash-graph-temporal-versioning	47.95% <ø> (ø)
rust.hash-graph-types	0.00% <ø> (ø)
rust.hash-graph-validation	83.45% <ø> (ø)
rust.hashql-ast	87.23% <ø> (ø)
rust.hashql-compiletest	29.69% <ø> (ø)
rust.hashql-core	82.29% <ø> (ø)
rust.hashql-diagnostics	72.43% <ø> (ø)
rust.hashql-eval	69.13% <ø> (ø)
rust.hashql-hir	89.06% <ø> (ø)
rust.hashql-mir	92.64% <ø> (ø)
rust.hashql-syntax-jexpr	94.05% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[cursor]

PR Summary

Medium Risk
Major-version upgrade of scc changes internal concurrent container implementation and pulls in new transitive deps, which could affect performance or subtle concurrency behavior. No application code changes are included, so risk is limited to dependency compatibility/build issues.

Overview
Updates the workspace dependency on scc from 2.4.0 to 3.x (pinned at 3.0.0 in Cargo.toml, resolved to 3.6.12 in Cargo.lock).

Refreshes the lockfile to match the new resolution, including adding saa, updating sdd, and shifting several transitive versions (notably socket2, syn, getrandom, and some windows-sys pins).

^{Written by Cursor Bugbot for commit 6ffbfc6. This will update automatically on new commits. Configure here.}

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
ds-theme	Error		Apr 2, 2026 7:45pm
hash	Ready	Preview, Comment	Apr 2, 2026 7:45pm
hashdotdesign	Ready	Preview, Comment	Apr 2, 2026 7:45pm
hashdotdesign-tokens	Ready	Preview, Comment	Apr 2, 2026 7:45pm
petrinaut	Ready	Preview	Apr 2, 2026 7:45pm

[codspeed-hq]

Merging this PR will not alter performance

✅ 80 untouched benchmarks

---

_{Comparing deps/rs/scc-3.x (6ffbfc6) with main (72b0a7b)¹}

Footnotes

1. No successful run was found on main (b03f6fe) during the generation of this report, so 72b0a7b was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩