Tweak CI config

Author: alexcrichton

.github/workflows/main.yml

@@ -9,17 +9,28 @@ jobs:
       matrix:
         rust: [stable, beta, nightly]
     steps:
-    - uses: actions/checkout@master
+    - uses: actions/checkout@v2
     - name: Install Rust
       run: rustup update ${{ matrix.rust }} && rustup default ${{ matrix.rust }}
     - run: cargo build --all
     - run: cargo test --all
 
+  fuzz_targets:
+    name: Fuzz Targets
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    # Note that building with fuzzers requires nightly since it uses unstable
+    # flags to rustc.
+      run: rustup update nightly && rustup default nightly
+    - run: cargo install cargo-fuzz --vers "^0.10"
+    - run: cargo fuzz build --dev
+
   rustfmt:
     name: Rustfmt
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@master
+    - uses: actions/checkout@v2
     - name: Install Rust
       run: rustup update stable && rustup default stable && rustup component add rustfmt
     - run: cargo fmt -- --check
@@ -28,7 +39,7 @@ jobs:
     name: Publish Documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v2
       - name: Install Rust
         run: rustup update stable && rustup default stable
       - name: Build documentation
@@ -40,4 +51,4 @@ jobs:
           git add .
           git -c user.name='ci' -c user.email='ci' commit -m init
           git push -f -q https://git:${{ secrets.github_token }}@github.com/${{ github.repository }} HEAD:gh-pages
-        if: github.event_name == 'push' && github.event.ref == 'refs/heads/master'
+        if: github.event_name == 'push' && github.event.ref == 'refs/heads/main'