ci: remove grcov from rust nightly nix build

examples/rust/file_transfer/examples/receiver.rs

@@ -27,7 +27,7 @@ impl Worker for FileReception {
     async fn handle_message(&mut self, ctx: &mut Context, msg: Routed<Self::Message>) -> Result<()> {
         match msg.into_body()? {
             FileData::Description(desc) => {
-                self.name = desc.name.clone();
+                self.name.clone_from(&desc.name);
                 self.size = desc.size;
                 self.file = Some(
                     OpenOptions::new()

implementations/rust/ockam/ockam_api/src/nodes/registry.rs

@@ -83,9 +83,6 @@ impl SecureChannelInfo {
     }
 }
 
-#[derive(Default, Clone)]
-pub(crate) struct OktaIdentityProviderServiceInfo {}
-
 #[derive(Default, Clone)]
 pub(crate) struct UppercaseServiceInfo {}
 

implementations/rust/ockam/ockam_app_lib/src/incoming_services/state.rs

@@ -116,7 +116,7 @@ impl AppState {
                 .await
             {
                 enabled = state.enabled;
-                name = state.name.clone();
+                name.clone_from(&state.name);
             }
 
             let original_name = match service_access_details.service_name() {
@@ -137,7 +137,7 @@ impl AppState {
 
             let project = if let Some(project) = ticket.project.as_mut() {
                 // to avoid conflicts with 'default' name
-                project.name = project.id.clone();
+                project.name.clone_from(&project.id);
                 project
             } else {
                 warn!("No project found in enrollment ticket");

implementations/rust/ockam/ockam_identity/src/secure_channel/handshake/handshake_state_machine.rs

@@ -111,7 +111,7 @@ impl CommonStateMachine {
             None => None,
         };
 
-        self.presented_credential = credential.clone();
+        self.presented_credential.clone_from(&credential);
         let credentials = credential.map(|c| vec![c]).unwrap_or(vec![]);
 
         let payload = IdentityAndCredentials {

tools/nix/parts/rust.nix

@@ -84,9 +84,7 @@ in {
 
         devTools = cargoPlugins ++ lib.optional cfg.rustAnalyzer pkgs.rust-analyzer;
 
-        nightlyTooling = with pkgs; [
-          grcov
-        ];
+        nightlyTooling = with pkgs; [];
 
         sharedInputs = compilerTools ++ nativeLibs ++ devTools;