Disable pcan in CI tests

Including pcan support in the tests requires the test environment have
libpcanbasic available, which has to be built from source.

.github/workflows/ci.yml

@@ -1,7 +1,7 @@
 name: CI
 
 on:
-    push: 
+    push:
     pull_request:
         types: [opened, synchronize, reopened]
 
@@ -28,7 +28,7 @@ jobs:
                   profile: minimal
                   override: true
                   components: rustfmt
-                  
+
             - name: Setup cache
               uses: Swatinem/rust-cache@v2
 
@@ -37,7 +37,7 @@ jobs:
               with:
                   command: fmt
                   args: --check
-                  
+
     lint:
         name: Lint
         runs-on: ubuntu-latest
@@ -53,7 +53,7 @@ jobs:
                   profile: minimal
                   override: true
                   components: clippy
-                  
+
             - name: Setup cache
               uses: Swatinem/rust-cache@v2
 
@@ -77,7 +77,7 @@ jobs:
                   toolchain: stable
                   profile: minimal
                   override: true
-                  
+
             - name: Setup cache
               uses: Swatinem/rust-cache@v2
 
@@ -90,8 +90,8 @@ jobs:
               uses: actions-rs/cargo@v1
               with:
                   command: tarpaulin
-                  args: --release --all-features --engine llvm --out xml
-                        
+                  args: --release --features tracing,socketcan --engine llvm --out xml
+
             - name: Upload to codecov.io
               uses: codecov/codecov-action@v2
               with: