Fix clippy warning and add wsl configuration for windows

.github/workflows/ci.yml

@@ -29,6 +29,8 @@ jobs:
       - uses: Swatinem/rust-cache@v1
       - name: Check Cargo availability
         run: cargo --version
+      - uses: Vampire/setup-wsl@v1
+        if: ${{ matrix.os == 'windows-latest' }}
       - run: cargo test --verbose -p distant-core
       - run: cargo test --verbose --all-features -p distant-core
 
@@ -41,6 +43,7 @@ jobs:
         include:
           - { rust: stable, os: ubuntu-latest }
           - { rust: stable, os: macos-latest }
+          - { rust: stable, os: windows-latest }
     steps:
       - uses: actions/checkout@v2
       - name: Install Rust ${{ matrix.rust }}
@@ -52,6 +55,8 @@ jobs:
       - uses: Swatinem/rust-cache@v1
       - name: Check Cargo availability
         run: cargo --version
+      - uses: Vampire/setup-wsl@v1
+        if: ${{ matrix.os == 'windows-latest' }}
       - run: cargo test --verbose
 
   clippy:

core/src/server/distant/state.rs

@@ -45,7 +45,7 @@ impl State {
         debug!("<Conn @ {:?}> Closing stdin to all processes", conn_id);
         if let Some(ids) = self.client_processes.get(&conn_id) {
             for id in ids {
-                if let Some(process) = self.processes.get_mut(&id) {
+                if let Some(process) = self.processes.get_mut(id) {
                     trace!(
                         "<Conn @ {:?}> Closing stdin for proc {}",
                         conn_id,