Pin the toolchain for linera-bridge e2e tests to 1.91 and update Carg…#5582
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deuszx merged 1 commit intotestnet_conwayfrom Mar 3, 2026
Merged
Pin the toolchain for linera-bridge e2e tests to 1.91 and update Carg…#5582deuszx merged 1 commit intotestnet_conwayfrom
deuszx merged 1 commit intotestnet_conwayfrom
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…ack breakage (#5583) ## Motivation The bridge E2E CI has been failing on every `testnet_conway` push since at least Feb 28 with a linker error: rust-lld: error: undefined symbol: __rust_probestack referenced by linera_wasmer_vm PR #5582 pinned the bridge e2e toolchain to Rust 1.91 to satisfy alloy's MSRV, but Rust 1.89+ removed `__rust_probestack` as a linkable extern symbol ([rust-lang/rust#141992](rust-lang/rust#141992)), which breaks the linera wasmer fork (v4.4.0-linera.7) that still references it in `probestack.rs`. ## Proposal Use Rust 1.88 (the last version before the probestack removal) and cap alloy to `<1.7` (since alloy 1.7+ requires Rust 1.91): - **`rust-toolchain.toml`**: 1.91 → 1.88 - **`Cargo.toml`**: Set `rust-version = "1.88"`, cap alloy to `>=1.0.42, <1.7` - **`.cargo/config.toml`** (new): Enable MSRV-aware resolver (`incompatible-rust-versions = "fallback"`) so alloy sub-crates also resolve to 1.6.x - **`Cargo.lock`**: Regenerated (alloy 1.3 → 1.6.3 across all sub-crates) - **`bridge-e2e.yml`**: Added `pull_request` trigger targeting `testnet_conway` so the test runs on this PR The proper long-term fix is updating the linera wasmer fork with the upstream probestack fix ([wasmerio/wasmer#5690](wasmerio/wasmer#5690)). The alloy cap comment documents this. ## Test Plan - `cargo check` passes locally with Rust 1.88 - The `pull_request` trigger on this PR will run the bridge E2E test in CI (remove the trigger before merge) ## Release Plan - Nothing to do / These changes follow the usual release cycle. ## Links - Failed CI run: https://github.com/linera-io/linera-protocol/actions/runs/22633609986/job/65590305218 - Rust PR that removed the symbol: [rust-lang/rust#141992](rust-lang/rust#141992) - Upstream wasmer fix: [wasmerio/wasmer#5690](wasmerio/wasmer#5690) - PR that introduced Rust 1.91: [#5582](https://github.com/lera-io/linera-protocol/pull/5582)
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Motivation
Linera Bridge e2e tests are failing in the CI due to issues with alloy versions and rust toolchain
Proposal
Use custom toolchain for
linera-bridge/tests/e2eand updateCargo.lockTest Plan
Checked locally. This will run after the PR merges to
testnet_conwayRelease Plan
None for now
Links