.github/workflows/ci.yml: Use swatinem/rust-cache (#2228)

Author: TriplEight

.github/workflows/ci.yml

@@ -19,17 +19,7 @@ jobs:
 
     - uses: actions/checkout@v2.3.4
 
-    - name: Cache CARGO_HOME
-      uses: actions/cache@v2.1.6
-      with:
-        path: ~/.cargo
-        key: cargo-home-${{ hashFiles('Cargo.toml') }}
-
-    - name: Cache cargo build
-      uses: actions/cache@v2.1.6
-      with:
-        path: target
-        key: cargo-build-target-${{ hashFiles('Cargo.toml') }}
+    - uses: Swatinem/rust-cache@v1.3.0
 
     - name: Run tests, with no feature
       run: cargo test --workspace --no-default-features
@@ -72,25 +62,13 @@ jobs:
 
     - name: Install a recent version of clang
       run: |
-        wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
-        echo "deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-10 main" >> /etc/apt/sources.list
         apt-get update
         apt-get install -y clang-11
 
     - name: Install CMake
       run: apt-get install -y cmake
 
-    - name: Cache CARGO_HOME
-      uses: actions/cache@v2.1.6
-      with:
-        path: ~/.cargo
-        key: cargo-home-${{ hashFiles('Cargo.toml') }}
-
-    - name: Cache cargo build
-      uses: actions/cache@v2.1.6
-      with:
-        path: target
-        key: wasm-cargo-build-target-${{ hashFiles('Cargo.toml') }}
+    - uses: Swatinem/rust-cache@v1.3.0
 
     - name: Build on wasm32-unknown-emscripten
       # TODO: also run `cargo test`
@@ -137,17 +115,7 @@ jobs:
         override: true
         components: clippy
 
-    - name: Cache CARGO_HOME
-      uses: actions/cache@v2.1.6
-      with:
-        path: ~/.cargo
-        key: cargo-home-${{ hashFiles('Cargo.toml') }}
-
-    - name: Cache cargo build
-      uses: actions/cache@v2.1.6
-      with:
-        path: target
-        key: cargo-build-target-${{ hashFiles('Cargo.toml') }}
+    - uses: Swatinem/rust-cache@v1.3.0
 
     - name: Run cargo clippy
       uses: actions-rs/cargo@v1.0.3
@@ -168,17 +136,7 @@ jobs:
 
     - uses: actions/checkout@v2.3.4
 
-    - name: Cache CARGO_HOME
-      uses: actions/cache@v2.1.6
-      with:
-        path: ~/.cargo
-        key: cargo-home-${{ hashFiles('Cargo.toml') }}
-
-    - name: Cache cargo build
-      uses: actions/cache@v2.1.6
-      with:
-        path: target
-        key: cargo-build-target-${{ hashFiles('Cargo.toml') }}
+    - uses: Swatinem/rust-cache@v1.3.0
 
     - name: Run ipfs-kad example
       run: RUST_LOG=libp2p_swarm=debug,libp2p_kad=trace,libp2p_tcp=debug cargo run --example ipfs-kad