feat: enable legacy state root tree by default (#474)

* feat: enable legacy state root tree by default

* remove unused code

* fix: ci failure due to rust version

* fix: ci

* update makefile

* rm rusttoolchain.toml

Author: yiweichi

.github/workflows/lint.yaml

@@ -21,6 +21,7 @@ jobs:
       - uses: rui314/setup-mold@v1
       - uses: dtolnay/rust-toolchain@clippy
         with:
+          toolchain: 'nightly-2026-01-05'
           components: clippy
       - uses: Swatinem/rust-cache@v2
         with:
@@ -38,6 +39,7 @@ jobs:
       - uses: rui314/setup-mold@v1
       - uses: dtolnay/rust-toolchain@nightly
         with:
+          toolchain: 'nightly-2026-01-05'
           components: rustfmt
       - name: Run fmt
         run: cargo fmt --all --check
@@ -59,13 +61,15 @@ jobs:
       - uses: actions/checkout@v6
       - uses: rui314/setup-mold@v1
       - uses: dtolnay/rust-toolchain@nightly
+        with:
+          toolchain: 'nightly-2026-01-05'
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true
       - uses: taiki-e/install-action@cargo-udeps
       - name: Run udeps
         run: cargo udeps --workspace --lib --examples --tests --benches --all-features --locked
-  
+
   zepter:
     runs-on: ubuntu-latest
     timeout-minutes: 10
@@ -88,6 +92,8 @@ jobs:
       - uses: actions/checkout@v6
       - uses: rui314/setup-mold@v1
       - uses: dtolnay/rust-toolchain@nightly
+        with:
+          toolchain: 'nightly-2026-01-05'
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true

.github/workflows/test.yaml

@@ -24,7 +24,7 @@ jobs:
       - uses: rui314/setup-mold@v1
       - uses: dtolnay/rust-toolchain@nightly
         with:
-          toolchain: 'nightly'
+          toolchain: 'nightly-2026-01-05'
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true
@@ -43,7 +43,7 @@ jobs:
       - uses: rui314/setup-mold@v1
       - uses: dtolnay/rust-toolchain@nightly
         with:
-          toolchain: 'nightly'
+          toolchain: 'nightly-2026-01-05'
       - uses: Swatinem/rust-cache@v2
         with:
           cache-on-failure: true

Makefile

@@ -1,6 +1,8 @@
+NIGHTLY_TOOLCHAIN := nightly-2026-01-05
+
 .PHONY: fmt
 fmt:
-	cargo +nightly fmt
+	cargo +$(NIGHTLY_TOOLCHAIN) fmt
 
 .PHONY: lint-toml
 lint-toml: ensure-dprint
@@ -14,7 +16,7 @@ ensure-dprint:
 
 .PHONY: clippy
 clippy:
-	cargo +nightly clippy \
+	cargo +$(NIGHTLY_TOOLCHAIN) clippy \
 	--workspace \
 	--lib \
 	--examples \
@@ -25,7 +27,7 @@ clippy:
 
 .PHONY: clippy-fix
 clippy-fix:
-	cargo +nightly clippy \
+	cargo +$(NIGHTLY_TOOLCHAIN) clippy \
 	--workspace \
 	--lib \
 	--examples \
@@ -37,7 +39,7 @@ clippy-fix:
 
 .PHONY: udeps
 udeps:
-	cargo +nightly udeps --workspace --lib --examples --tests --benches --all-features --locked
+	cargo +$(NIGHTLY_TOOLCHAIN) udeps --workspace --lib --examples --tests --benches --all-features --locked
 
 .PHONY: codespell
 codespell: ensure-codespell
@@ -64,7 +66,7 @@ lint: fmt lint-toml clippy udeps codespell zepter
 
 .PHONY: test
 test:
-	cargo nextest run \
+	cargo +$(NIGHTLY_TOOLCHAIN) nextest run \
 	--workspace \
 	--locked \
 	--all-features \

crates/node/src/main.rs

@@ -45,7 +45,11 @@ fn main() {
                         .config()
                         .engine
                         .tree_config()
-                        .with_always_process_payload_attributes_on_canonical_head(true).with_persistence_threshold(0).with_unwind_canonical_header(true);
+                        .with_always_process_payload_attributes_on_canonical_head(true)
+                        .with_persistence_threshold(0)
+                        .with_unwind_canonical_header(true)
+                        // Use legacy state root processor due to performance issues with the new state root processor in reth.
+                        .with_legacy_state_root(true);
                     let launcher = EngineNodeLauncher::new(
                         builder.task_executor().clone(),
                         builder.config().datadir(),