fixup! CI: added basic set of workflows.

Author: bavshin-f5

.github/workflows/ci.yaml

@@ -12,12 +12,30 @@ env:
   NGINX_SOURCE_DIR: nginx
 
 jobs:
-  linux:
+  rust-version:
+    name: Minimal supported Rust version
+    outputs:
+      version: ${{ steps.read_version.outputs.msrv }}
     runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - id: read_version
+        run: |
+          awk -F '=' \
+            '/^rust-version[[:space:]]*=/ { gsub(/([" ]|#.*)/,"",$2); print ("msrv=" $2) }' \
+            Cargo.toml \
+          | tee -a "$GITHUB_OUTPUT"
+
+  unix:
+    needs: rust-version
 
     strategy:
       fail-fast: false
       matrix:
+        os:
+          - ubuntu
+        rust-version:
+          - stable
         nginx-ref:
           - master
           - stable-1.28
@@ -26,6 +44,18 @@ jobs:
           - debug-static
           - release
 
+        include:
+          - os: ubuntu
+            rust-version: ${{ needs.rust-version.outputs.version }}
+            nginx-ref: stable-1.28
+            build: debug
+
+          - os: macos
+            nginx-ref: stable-1.28
+            build: debug
+
+    runs-on: ${{ matrix.os }}-latest
+            
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
@@ -42,7 +72,7 @@ jobs:
 
       - uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b
         with:
-          toolchain: stable
+          toolchain: ${{ matrix.rust-version }}
 
       - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with: