Move nightly check to a separate job that doesn't run on staging/trying

Author: richardeoin

.github/workflows/ci.yml

@@ -8,7 +8,6 @@ name: Continuous integration
 jobs:
   ci:
     runs-on: ubuntu-latest
-    continue-on-error: ${{ matrix.experimental }}
     strategy:
       matrix:                   # All permutations of {rust, mcu}
         rust:
@@ -20,11 +19,6 @@ jobs:
           - stm32h743v
           - stm32h753v
           - stm32h747cm7
-        experimental: [false]
-        include:                # One additional job, as follows:
-          - rust: nightly
-            mcu: stm32h743v
-            experimental: true
 
     steps:
       - uses: actions/checkout@v2

.github/workflows/clippy.yml

@@ -8,7 +8,6 @@ name: Clippy
 jobs:
   clippy_check:
     runs-on: ubuntu-latest
-    continue-on-error: true
     steps:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1

.github/workflows/nightly.yml

@@ -0,0 +1,27 @@
+on:
+  push:
+    branches: [ master ]        # Do not run on staging / trying
+  pull_request:
+
+name: Nightly rust
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+          target: thumbv7em-none-eabihf
+          override: true
+      - uses: actions-rs/cargo@v1
+        with:
+          use-cross: true
+          command: build
+          args: --verbose --release --examples --target thumbv7em-none-eabihf --features rt,stm32h743v
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --lib --target x86_64-unknown-linux-gnu --features rt,stm32h743v