Test anchors build in CI

Author: wpaulino

.github/workflows/build.yml

@@ -24,19 +24,22 @@ jobs:
             build-no-std: true
             build-futures: true
             build-tx-sync: true
+            build-anchors: true
             coverage: true
           - toolchain: stable
             platform: macos-latest
             build-net-tokio: true
             build-no-std: true
             build-futures: true
             build-tx-sync: true
+            build-anchors: true
           - toolchain: beta
             platform: macos-latest
             build-net-tokio: true
             build-no-std: true
             build-futures: true
             build-tx-sync: true
+            build-anchors: true
           - toolchain: stable
             platform: windows-latest
             build-net-tokio: true
@@ -54,11 +57,13 @@ jobs:
             build-no-std: true
             build-futures: true
             build-tx-sync: true
+            build-anchors: true
           - toolchain: 1.41.1
             build-no-std: false
             test-log-variants: true
             build-futures: false
             build-tx-sync: false
+            build-anchors: true
           - toolchain: 1.45.2
             build-net-old-tokio: true
             build-net-tokio: true
@@ -210,6 +215,10 @@ jobs:
           RUSTFLAGS="--cfg=c_bindings" cargo test --verbose --color always  -p lightning-invoice
           RUSTFLAGS="--cfg=c_bindings" cargo build --verbose  --color always -p lightning-persister
           RUSTFLAGS="--cfg=c_bindings" cargo build --verbose  --color always -p lightning-background-processor
+      - name: Test Anchors Modifications on Rust ${{ matrix.toolchain }}
+        if: "matrix.build-anchors"
+        run: |
+          RUSTFLAGS="--cfg=anchors" cargo test --verbose --color always -p lightning
       - name: Test Block Sync Clients on Rust ${{ matrix.toolchain }} with features
         if: "matrix.build-net-tokio && !matrix.coverage"
         run: |