Drop actions-rs actions

Signed-off-by: Yuki Okushi <[email protected]>

Author: JohnTitor

Diff for: .github/workflows/clippy-rustfmt.yml

@@ -19,11 +19,10 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust Nightly
-        uses: actions-rs/toolchain@v1
-        with:
-            toolchain: nightly
-            override: true
-            components: rustfmt, clippy
+        run: |
+          rustup override set nightly
+          rustup update nightly
+          rustup component add rustfmt clippy
 
       - name: rustfmt
         run: cargo fmt --all -- --check

Diff for: .github/workflows/main.yml

@@ -16,11 +16,10 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust Stable
-        uses: actions-rs/toolchain@v1
-        with:
-            toolchain: stable
-            override: true
-            components: cargo, llvm-tools-preview
+        run: |
+          rustup override set stable
+          rustup update stable
+          rustup component add llvm-tools-preview
 
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@cargo-llvm-cov
@@ -32,5 +31,3 @@ jobs:
         with:
           files: lcov.info
           fail_ci_if_error: true
-        
-