Merge pull request #2034 from Shourya742/2025-12-19-add-toolchain

Add rust-toolchain.toml

Author: plebhash

.github/workflows/clippy-lint.yaml

@@ -24,9 +24,17 @@ jobs:
 
       - name: Install Rust (1.89) + Clippy
         uses: dtolnay/[email protected]
+        id: toolchain
         with:
           components: clippy
-          
+      
+      # NOTE: A repo-local `rust-toolchain.toml` is still respected by rustup.
+      # `dtolnay/rust-toolchain` installs the requested toolchain but does not
+      # automatically override it.
+      - name: Override toolchain
+        run: |
+          rustup override set ${{ steps.toolchain.outputs.name }}
+
       - name: Run Clippy
         run: |
           cargo clippy --all-features -- -D warnings

.github/workflows/fuzz_tests.yaml

@@ -16,6 +16,14 @@ jobs:
 
       - name: Install Rust
         uses: dtolnay/rust-toolchain@nightly
+        id: toolchain
+      
+      # NOTE: A repo-local `rust-toolchain.toml` is still respected by rustup.
+      # `dtolnay/rust-toolchain` installs the requested toolchain but does not
+      # automatically override it.
+      - name: Override toolchain
+        run: |
+          rustup override set ${{ steps.toolchain.outputs.name }}
 
       - name: Install cargo-fuzz
         run: cargo install cargo-fuzz

.github/workflows/integration-tests.yaml

@@ -48,6 +48,14 @@ jobs:
 
       - name: Install Rust
         uses: dtolnay/[email protected]
+        id: toolchain
+
+      # NOTE: A repo-local `rust-toolchain.toml` is still respected by rustup.
+      # `dtolnay/rust-toolchain` installs the requested toolchain but does not
+      # automatically override it.
+      - name: Override toolchain
+        run: |
+          rustup override set ${{ steps.toolchain.outputs.name }}
 
       - name: Install capnproto (Ubuntu)
         if: steps.detect.outputs.should_run_integration_test == 'true' && matrix.os == 'ubuntu-latest'

.github/workflows/miri.yaml

@@ -14,8 +14,16 @@ jobs:
 
       - name: Install Rust nightly + Miri
         uses: dtolnay/rust-toolchain@nightly
+        id: toolchain
         with:
           components: miri
+      
+      # NOTE: A repo-local `rust-toolchain.toml` is still respected by rustup.
+      # `dtolnay/rust-toolchain` installs the requested toolchain but does not
+      # automatically override it.
+      - name: Override toolchain
+        run: |
+          rustup override set ${{ steps.toolchain.outputs.name }}
 
       - name: Miri setup
         run: cargo miri setup

.github/workflows/semver-check.yaml

@@ -15,6 +15,14 @@ jobs:
 
       - name: Install Rust (1.85)
         uses: dtolnay/[email protected]
+        id: toolchain
+
+      # NOTE: A repo-local `rust-toolchain.toml` is still respected by rustup.
+      # `dtolnay/rust-toolchain` installs the requested toolchain but does not
+      # automatically override it.
+      - name: Override toolchain
+        run: |
+          rustup override set ${{ steps.toolchain.outputs.name }}
 
       - name: Cache Cargo registry
         uses: actions/cache@v4

rust-toolchain.toml

@@ -0,0 +1,3 @@
+[toolchain]
+channel = "1.75.0"
+components = [ "rustfmt", "clippy" ]