remove clippy, get rustfmt working

.github/workflows/rustfmt.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:
-            toolchain: stable
+            toolchain: nightly
             components: rustfmt
             override: true
-      - run: rustfmt --check --edition 2018 ./boards/* ./hal/* ./pac/*
+      - run: ./rustfmt.sh

rustfmt.sh

@@ -0,0 +1,25 @@
+RET=0
+
+# first, all boards & their examples
+DIRECTORIES=$(find ./boards -type f -iname Cargo.toml)
+echo $DIRECTORIES
+for DIR in $DIRECTORIES
+do
+    pushd $(dirname $DIR)
+    rustfmt --edition 2018 --check ./src/lib.rs ./examples/*.rs
+    RET=$(($RET + $?))
+    popd
+done
+
+# now the PAC & main HAL
+DIRECTORIES=$(find ./hal ./pac -type f -iname Cargo.toml)
+echo $DIRECTORIES
+for DIR in $DIRECTORIES
+do
+    pushd $(dirname $DIR)
+    rustfmt --edition 2018 --check ./src/lib.rs
+    RET=$(($RET + $?))
+    popd
+done
+
+exit $RET