CI: Cargo fmt for channel, mono., time

.github/workflows/build.yml

@@ -15,7 +15,7 @@ env:
 jobs:
   # Run cargo fmt --check, includes macros/
   style:
-    name: style
+    name: cargo fmt
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
@@ -29,6 +29,52 @@ jobs:
         working-directory: ./rtic
         run:  cargo fmt --all -- --check
 
+  stylechannel:
+    name: cargo fmt rtic-channel
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Fail on warnings
+        working-directory: ./rtic-channel
+        run: sed -i 's,//deny_warnings_placeholder_for_ci,#![deny(warnings)],' src/lib.rs
+
+      - name: cargo fmt --check
+        working-directory: ./rtic-channel
+        run:  cargo fmt --all -- --check
+
+  stylemonotonics:
+    name: cargo fmt rtic-monotonics
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Fail on warnings
+        working-directory: ./rtic-monotonics
+        run: sed -i 's,//deny_warnings_placeholder_for_ci,#![deny(warnings)],' src/lib.rs
+
+      - name: cargo fmt --check
+        working-directory: ./rtic-monotonics
+        run:  cargo fmt --all -- --check
+
+  styletime:
+    name: cargo fmt rtic-time 
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Fail on warnings
+        working-directory: ./rtic-time
+        run: sed -i 's,//deny_warnings_placeholder_for_ci,#![deny(warnings)],' src/lib.rs
+
+      - name: cargo fmt --check
+        working-directory: ./rtic-time
+        run:  cargo fmt --all -- --check
+
+
   # Compilation check
   check:
     name: check