ci: Adapt some initial CI (#1)

This is mostly copied from upstream, with a bit of changes inspired by
our own usual CI setup.

.github/workflows/rust.yml

@@ -2,34 +2,10 @@ name: CI
 
 on:
   push:
-    branches: ['main', '0.8.x']
+    branches: ['0.10.x']
   pull_request:
-  schedule:
-    - cron: "21 3 * * 5"
 
 jobs:
-  test-freebsd:
-  # see https://github.com/actions/runner/issues/385
-  # use https://github.com/vmactions/freebsd-vm for now
-    name: test on freebsd
-    runs-on: macos-12
-    steps:
-      - uses: actions/checkout@v3
-      - name: test on freebsd
-        uses: vmactions/freebsd-vm@v0
-        with:
-          usesh: true
-          mem: 4096
-          copyback: false
-          prepare: |
-            pkg install -y curl
-            curl https://sh.rustup.rs -sSf --output rustup.sh
-            sh rustup.sh -y --profile minimal --default-toolchain stable
-            echo "~~~~ rustc --version ~~~~"
-            $HOME/.cargo/bin/rustc --version
-            echo "~~~~ freebsd-version ~~~~"
-            freebsd-version
-          run: $HOME/.cargo/bin/cargo build --all-targets && $HOME/.cargo/bin/cargo test && $HOME/.cargo/bin/cargo test --manifest-path fuzz/Cargo.toml
   test:
     strategy:
       matrix:
@@ -43,38 +19,45 @@ jobs:
 
     runs-on: ${{ matrix.os }}
 
+    env:
+      RUSTC_WRAPPER: "sccache"
+      SCCACHE_GHA_ENABLED: "on"
+
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
+      - uses: mozilla-actions/[email protected]
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
-      - uses: Swatinem/rust-cache@v1
       - run: cargo build --all-targets
       - run: cargo test
       - run: cargo test --manifest-path fuzz/Cargo.toml
         if: ${{ matrix.rust }} == "stable"
 
   msrv:
     runs-on: ubuntu-latest
+    env:
+      RUSTC_WRAPPER: "sccache"
+      SCCACHE_GHA_ENABLED: "on"
     steps:
       - uses: actions/checkout@v3
+      - uses: mozilla-actions/[email protected]
       - uses: dtolnay/[email protected]
-      - uses: Swatinem/rust-cache@v1
       - run: cargo check --lib --all-features -p quinn-udp -p quinn-proto -p quinn
 
   lint:
     runs-on: ubuntu-latest
+    env:
+      RUSTC_WRAPPER: "sccache"
+      SCCACHE_GHA_ENABLED: "on"
     steps:
       - uses: actions/checkout@v3
+      - uses: mozilla-actions/[email protected]
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: rustfmt, clippy
-      - uses: Swatinem/rust-cache@v1
       - run: cargo fmt --all -- --check
       - run: cargo clippy --all-targets -- -D warnings
-      - uses: dtolnay/rust-toolchain@stable
-        with:
-          components: clippy
       - name: doc
         run: cargo doc --no-deps --document-private-items
         env: