ci: switch to dtolnay/rust-toolchain

.github/workflows/test.yml

@@ -13,13 +13,7 @@ jobs:
         uses: Swatinem/rust-cache@v1
 
       - name: Setup Rust
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
-          profile: minimal
-          components: rustfmt, clippy
-          target: wasm32-unknown-unknown
+        uses: dtolnay/rust-toolchain@stable
 
       - name: Run cargo fmt
         uses: actions-rs/cargo@v1

rust-toolchain.toml

@@ -0,0 +1,5 @@
+[toolchain]
+# The default profile includes rustc, rust-std, cargo, rust-docs, rustfmt and clippy.
+profile = "default"
+channel = "stable"
+targets = [ "wasm32-unknown-unknown" ]