Add FreeBSD CI job, update to 1.87 (FreeBSD 14.3) and fix clippy lints

Author: junderw

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     name: Compile Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup Rust
         uses: './.github/actions/ci-rust-setup'
         with:
@@ -23,7 +23,7 @@ jobs:
     name: Formatter
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup Rust
         uses: './.github/actions/ci-rust-setup'
         with:
@@ -34,13 +34,55 @@ jobs:
     name: Run Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup Rust
         uses: './.github/actions/ci-rust-setup'
         with:
           cache-name: test
       - run: cargo test --lib --all-features
 
+  test-freebsd:
+    runs-on: ubuntu-latest
+    name: Run Tests in FreeBSD
+    env:
+      FREEBSD_VER: "14.3"
+    steps:
+    - uses: actions/checkout@v4
+    - name: Cache dependencies for FreeBSD
+      uses: actions/cache@v3
+      with:
+        path: |
+          .cargohome/registry
+          .cargohome/git
+          target
+        key: freebsd-${{ env.FREEBSD_VER }}-cargo-test-${{ hashFiles('**/Cargo.lock') }}
+    - name: Test in FreeBSD
+      uses: vmactions/freebsd-vm@v1
+      with:
+        usesh: true
+        release: "${{ env.FREEBSD_VER }}"
+        arch: amd64
+        prepare: |
+          mkdir -p ~/.cargo/
+          mkdir -p ./.cargohome/registry/
+          mkdir -p ./.cargohome/git/
+          mv ./.cargohome/registry ~/.cargo/
+          mv ./.cargohome/git ~/.cargo/
+          rm -rf ./.cargohome
+          pkg install -y git rsync gmake llvm rust
+
+        run: |
+          cargo check --no-default-features
+          cargo check -F liquid
+          cargo check -F electrum-discovery
+          cargo check -F electrum-discovery,liquid
+          rm -rf ./.cargohome
+          mkdir -p ~/.cargo/registry/
+          mkdir -p ~/.cargo/git/
+          mkdir -p ./.cargohome/
+          mv ~/.cargo/registry ./.cargohome/
+          mv ~/.cargo/git ./.cargohome/
+
   clippy:
     name: Linter
     runs-on: ubuntu-latest
@@ -54,7 +96,7 @@ jobs:
           '-F electrum-discovery,liquid',
         ]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup Rust
         uses: './.github/actions/ci-rust-setup'
         with: