dev 2026 02 12

.github/workflows/_build-release.yml

@@ -18,19 +18,11 @@ on:
         description: "Include CairoLS in build"
         type: boolean
         default: true
-      include-stwo:
-        description: "Include Stwo in build"
-        type: boolean
-        default: true
       include-lint:
         description: "Include CairoLint in build"
         type: boolean
         default: true
 
-env:
-  # TODO(#1915): Use stable toolchain once stwo is stable.
-  RUST_NIGHTLY_TOOLCHAIN: "nightly-2025-07-14"
-
 jobs:
   build:
     name: build ${{ matrix.target }}
@@ -92,33 +84,14 @@ jobs:
         run: echo "CARGO=cross" >> $GITHUB_ENV
 
       - name: Build
-        run: ${{ env.CARGO }} build --release --locked --target ${{ matrix.target }} --workspace --exclude scarb-prove --exclude scarb-verify ${{ !inputs.include-cairols && '--exclude scarb-cairo-language-server' || ''}} --no-default-features ${{ inputs.include-lint && '--features scarb/scarb-lint' || ''}}
-
-      - uses: dtolnay/rust-toolchain@master
-        if: inputs.include-stwo
-        with:
-          target: ${{ matrix.target }}
-          toolchain: ${{ env.RUST_NIGHTLY_TOOLCHAIN }}
-
-      - name: Install cross
-        if: matrix.cross && inputs.include-stwo
-        uses: taiki-e/install-action@cross
-
-      - name: Enable cross-compilation
-        if: matrix.cross && inputs.include-stwo
-        shell: bash
-        run: echo "CARGO=cross" >> $GITHUB_ENV
-
-      - name: Build nightly crates
-        if: inputs.include-stwo
-        run: ${{ env.CARGO }} build --release --locked --target ${{ matrix.target }} -p scarb-prove -p scarb-verify
+        run: ${{ env.CARGO }} build --release --locked --target ${{ matrix.target }} --workspace ${{ !inputs.include-cairols && '--exclude scarb-cairo-language-server' || ''}} --no-default-features ${{ inputs.include-lint && '--features scarb/scarb-lint' || ''}}
 
       - uses: dtolnay/rust-toolchain@stable
         with:
           target: ${{ matrix.target }}
 
       - name: Create archive
-        run: cargo xtask create-archive ${{ !inputs.include-cairols && '--skip-cairols' || '' }} ${{ !inputs.include-stwo && '--skip-stwo' || '' }}
+        run: cargo xtask create-archive ${{ !inputs.include-cairols && '--skip-cairols' || '' }} --skip-stwo
         env:
           STAGING: scarb-${{ inputs.scarb-tag }}-${{ matrix.target }}
           TARGET: ${{ matrix.target }}

.github/workflows/_check-release.yml

@@ -20,10 +20,6 @@ on:
         type: boolean
         default: true
 
-env:
-  # TODO(#1915): Use stable toolchain once stwo is stable.
-  RUST_NIGHTLY_TOOLCHAIN: "nightly-2025-07-14"
-
 jobs:
   test:
     name: test ${{ matrix.name }}
@@ -43,15 +39,7 @@ jobs:
         with:
           ref: ${{ inputs.ref }}
       - uses: dtolnay/rust-toolchain@stable
-      - run: cargo test --profile=ci --all-features --no-fail-fast --workspace --exclude scarb-prove --exclude scarb-verify
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: ${{ env.RUST_NIGHTLY_TOOLCHAIN }}
-      - name: Run nightly light tests
-        run: cargo +${{ env.RUST_NIGHTLY_TOOLCHAIN }} test --profile=ci --no-fail-fast -p scarb-prove -p scarb-verify --no-default-features
-
-      - name: Run nightly heavy tests
-        run: cargo +${{ env.RUST_NIGHTLY_TOOLCHAIN }} test --profile=ci --no-fail-fast -p scarb-prove -p scarb-verify --test heavy -- --test-threads=1
+      - run: cargo test --profile=ci --all-features --no-fail-fast --workspace
 
   snforge-init:
     runs-on: ubuntu-latest

.github/workflows/build-dev.yml

@@ -19,18 +19,10 @@ on:
         description: "Upgrade CairoLint"
         type: boolean
         default: false
-      # upgrade-stwo:
-      #   description: "Upgrade Stwo"
-      #   type: boolean
-      #   default: false
       include-cairols:
         description: "Include CairoLS in build"
         type: boolean
         default: true
-      include-stwo:
-        description: "Include Stwo in build"
-        type: boolean
-        default: true
       include-lint:
         description: "Include CairoLint in build"
         type: boolean
@@ -45,8 +37,6 @@ jobs:
       upgrade-cairo: ${{ inputs.upgrade-cairo }}
       upgrade-cairols: ${{ inputs.upgrade-cairols }}
       upgrade-cairolint: ${{ inputs.upgrade-cairolint }}
-      #upgrade-stwo: ${{ inputs.upgrade-stwo }}
       include-cairols: ${{ inputs.include-cairols }}
-      include-stwo: ${{ inputs.include-stwo }}
       include-lint: ${{ inputs.include-lint }}
       is_dev: true

.github/workflows/ci.yml

@@ -12,10 +12,6 @@ concurrency:
   group: ${{ github.head_ref || github.run_id }}
   cancel-in-progress: ${{ github.head_ref != 'main' }}
 
-env:
-  # TODO(#1915): Use stable toolchain once stwo is stable.
-  RUST_NIGHTLY_TOOLCHAIN: "nightly-2025-07-14"
-
 jobs:
   setup-matrix:
     runs-on: ubuntu-latest
@@ -71,7 +67,7 @@ jobs:
         with:
           tool: nextest@0.9.98
       - name: nextest archive
-        run: cargo nextest archive --workspace --all-features --cargo-profile ci --archive-file 'nextest-archive-${{ matrix.platform.os }}.tar.zst' --exclude scarb-prove --exclude scarb-verify --exclude cairo-lang-macro
+        run: cargo nextest archive --workspace --all-features --cargo-profile ci --archive-file 'nextest-archive-${{ matrix.platform.os }}.tar.zst' --exclude cairo-lang-macro
       - uses: actions/upload-artifact@v6
         with:
           name: nextest-archive-${{ matrix.platform.os }}
@@ -109,12 +105,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: run tests
-        run: cargo test --doc --workspace --exclude scarb-prove --exclude scarb-verify --exclude scarb-execute
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: ${{ env.RUST_NIGHTLY_TOOLCHAIN }}
-      - name: run nightly tests
-        run: cargo test --doc -p scarb-prove -p scarb-verify -p scarb-execute
+        run: cargo test --doc --workspace
 
   scarb-metadata-compatibility:
     name: scarb-metadata compatibility check
@@ -131,72 +122,6 @@ jobs:
       - name: run tests
         run: cargo test -p scarb-metadata
 
-  build-nightly-test:
-    name: build nightly test ${{ matrix.platform.name }}
-    runs-on: ${{ matrix.platform.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        platform:
-          # TODO: Enable tests on windows when stwo supports it.
-          - name: linux x86-64
-            os: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: ${{ env.RUST_NIGHTLY_TOOLCHAIN }}
-      - uses: taiki-e/install-action@v2
-        with:
-          tool: nextest@0.9.98
-      - uses: Swatinem/rust-cache@v2
-      - name: nextest archive
-        run: cargo nextest archive --all-features --cargo-profile ci --archive-file 'nextest-nightly-archive-${{ matrix.platform.os }}.tar.zst' --package scarb-prove --package scarb-verify
-      - uses: actions/upload-artifact@v6
-        with:
-          name: nextest-nightly-archive-${{ matrix.platform.os }}
-          path: nextest-nightly-archive-${{ matrix.platform.os }}.tar.zst
-
-  test-nightly:
-    name: test nightly ${{ matrix.platform.name }}
-    runs-on: ${{ matrix.platform.os }}
-    needs:
-      - build-test
-      - build-nightly-test
-    strategy:
-      fail-fast: false
-      matrix:
-        platform:
-          - name: linux x86-64
-            os: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: ${{ env.RUST_NIGHTLY_TOOLCHAIN }}
-      - uses: taiki-e/install-action@v2
-        with:
-          tool: nextest@0.9.98
-      - uses: Swatinem/rust-cache@v2
-      - name: Download stable build artifacts  
-        uses: actions/download-artifact@v7
-        with:
-          name: nextest-archive-${{ matrix.platform.os }}
-      - name: Unpack build stable rust artifacts from nextest archive on linux
-        if: matrix.platform.os == 'ubuntu-latest'
-        run: |
-          tar --use-compress-program=unzstd -xvf nextest-archive-ubuntu-latest.tar.zst
-          mv target stable-crates-target
-          echo "NEXTEST_BIN_EXE_scarb=$GITHUB_WORKSPACE/stable-crates-target/ci/scarb" >> $GITHUB_ENV
-          echo "$GITHUB_WORKSPACE/stable-crates-target/ci" >> $GITHUB_PATH
-          echo "$GITHUB_WORKSPACE/target/ci" >> $GITHUB_PATH
-      - name: Download nightly build artifacts
-        uses: actions/download-artifact@v7
-        with:
-          name: nextest-nightly-archive-${{ matrix.platform.os }}
-      - name: nextest partition
-        run: cargo nextest run --archive-file 'nextest-nightly-archive-${{ matrix.platform.os }}.tar.zst' --extract-to ./
-
   test-cairo-lang-macro:
     name: test cairo-lang-macro ${{ matrix.platform.name }}
     runs-on: ${{ matrix.platform.os }}
@@ -223,12 +148,11 @@ jobs:
           components: rustfmt, clippy
       - uses: Swatinem/rust-cache@v2
       - run: cargo fmt --check
-      # TODO(#1915): Build all crates with stable toolchain once stwo is stable.
-      - run: cargo clippy --all-targets --all-features --workspace --exclude scarb-prove --exclude scarb-verify -- --no-deps
+      - run: cargo clippy --all-targets --all-features --workspace -- --no-deps
         env:
           # Make sure CI fails on all warnings, including Clippy lints.
           RUSTFLAGS: "-Dwarnings"
-      - run: cargo doc --all-features --no-deps --workspace --exclude scarb-prove --exclude scarb-verify
+      - run: cargo doc --all-features --no-deps --workspace
         env:
           # Make sure CI fails on all warnings, including Clippy lints.
           RUSTDOCFLAGS: "-Dwarnings"
@@ -241,25 +165,6 @@ jobs:
       - name: Machete
         uses: bnjbvr/cargo-machete@v0.9.1
 
-  check-rust-nightly:
-    name: check-rust (nightly)
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: ${{ env.RUST_NIGHTLY_TOOLCHAIN }}
-          components: rustfmt, clippy
-      - uses: Swatinem/rust-cache@v2
-      - run: cargo +${{ env.RUST_NIGHTLY_TOOLCHAIN }} clippy --all-targets --all-features -p scarb-prove -p scarb-verify -- --no-deps
-        env:
-          # Make sure CI fails on all warnings, including Clippy lints.
-          RUSTFLAGS: "-Dwarnings"
-      - run: cargo +${{ env.RUST_NIGHTLY_TOOLCHAIN }} doc --all-features --no-deps -p scarb-prove -p scarb-verify
-        env:
-          # Make sure CI fails on all warnings, including Clippy lints.
-          RUSTDOCFLAGS: "-Dwarnings"
-
   check-website:
     runs-on: ubuntu-latest
     defaults:

.github/workflows/nightly.yml

@@ -19,10 +19,6 @@ on:
         description: "Upgrade CairoLint"
         type: boolean
         default: true
-      # upgrade-stwo:
-      #   description: "Upgrade Stwo"
-      #   type: boolean
-      #   default: true
   workflow_call:
     inputs:
       dry_run:
@@ -41,18 +37,10 @@ on:
         description: "Upgrade CairoLint"
         type: boolean
         default: true
-      # upgrade-stwo:
-      #   description: "Upgrade Stwo"
-      #   type: boolean
-      #   default: true
       include-cairols:
         description: "Include CairoLS in build"
         type: boolean
         default: true
-      include-stwo:
-        description: "Include Stwo in build"
-        type: boolean
-        default: true
       include-lint:
         description: "Include CairoLint in build"
         type: boolean
@@ -107,10 +95,6 @@ jobs:
         if: ${{ !contains(inputs.upgrade-cairolint, 'false') }}
         run: cargo xtask upgrade cairolint --rev $(git ls-remote --refs "https://github.com/software-mansion/cairo-lint" main | awk '{print $1}')
 
-      # - name: Upgrade stwo-cairo to latest main commit
-      #   if: ${{ !contains(inputs.upgrade-stwo, 'false') }}
-      #   run: cargo xtask upgrade stwo-cairo --rev $(git ls-remote --refs "https://github.com/starkware-libs/stwo-cairo" main | awk '{print $1}')
-
       - name: Rebuild xtasks after Cargo.toml changes
         run: cargo build -p xtask
 
@@ -188,7 +172,6 @@ jobs:
       ref: ${{ needs.prepare.outputs.nightly_branch }}
       full-verify: ${{ !inputs.is_dev }}
       include-cairols: ${{ !contains(inputs.include-cairols, 'false') }}
-      include-stwo: ${{ !contains(inputs.include-stwo, 'false') }}
       include-lint: ${{ !contains(inputs.include-lint, 'false') }}
 
   upload: