fix(sol): use pinned compiler for bb sol build#24620
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## Summary - Backport the Foundry config fix from [#24620](#24620) to `merge-train/spartan`. - Move the `barretenberg/sol` `solc` setting into `[profile.default]` so Foundry actually uses `../../l1-contracts/solc-0.8.30`. ## Why [#24620](#24620) fixed the v5 train after `bb-sol` ignored the intended pinned compiler and fell back to Foundry's SVM download path. `merge-train/spartan` had the same TOML scoping issue. ## Verification - `forge config --json` in `barretenberg/sol` reports `"solc": "../../l1-contracts/solc-0.8.30"`. - `make bb-sol` passed. --- *Created by [claudebox](https://claudebox.work/v2/sessions/2b8c305bd7244e7e) · group: `slackbot`*
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Summary
barretenberg/solFoundrysolcsetting into[profile.default].bb-soluse the compiler already downloaded byl1-contracts-solcinstead of invoking Foundry's SVM network installer duringforge build.Investigation
PR #24606 entered the merge queue at 2026-07-08 22:51:37 UTC and was removed at 23:03:01 UTC. The failing merge-group run was CI3 run 28981250165 on queue SHA
fddbdbb79591f5cda6fa6450157e180cbfddb89f.The failed status was
ci/a1-fast; the underlyingbb-sollog showsforge buildinbarretenberg/soltried to installsolc 0.8.30fromraw.githubusercontent.com/nikitastupin/solc/.../linux/aarch64/solc-v0.8.30and got HTTP 429.l1-contracts-solchad already succeeded from cache, so the problem was that Foundry ignored the pinned compiler setting because it was scoped under[fuzz].Verification
forge config --jsoninbarretenberg/solnow reports"solc": "../../l1-contracts/solc-0.8.30"../bootstrap.sh download_solcinl1-contractspassed.make bb-solpassed../bootstrap.sh ciwas attempted but this branch's root bootstrap does not defineci(Unknown command: ci; available modes areci-fast,ci-full,ci-full-no-test-cache)../bootstrap.sh ci-fastwas attempted; the local workspace stopped beforebb-solbecause.claude/tests/agents_symlink_testfails against the harness-providedAGENTS.md/agents symlink layout. The affectedbb-soltarget was verified directly above.Created by claudebox · group:
slackbot