diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ef6183d199..56d5a2bd43 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -61,7 +61,7 @@ jobs:
       - name: Compile NPM
         run: |
           cd applications/launchpad/gui-vue
-          npm install
+          npm ci
           npm run build
       - name: toolchain
         uses: actions-rs/toolchain@v1
@@ -80,7 +80,7 @@ jobs:
           command: clippy
           args: --all-targets -- -D warnings
   build:
-    name: build
+    name: check nightly
     runs-on: ubuntu-18.04
     steps:
       - name: checkout
@@ -114,7 +114,7 @@ jobs:
       - name: Compile NPM
         run: |
           cd applications/launchpad/gui-vue
-          npm install
+          npm ci
           npm run build
       - name: toolchain
         uses: actions-rs/toolchain@v1
@@ -122,6 +122,57 @@ jobs:
           toolchain: ${{ env.toolchain }}
           components: clippy, rustfmt
           override: true
+      - name: cargo check
+        uses: actions-rs/cargo@v1
+        with:
+          command: check
+          args: --release --all-targets
+  build-stable:
+    name: check stable
+    runs-on: ubuntu-18.04
+    steps:
+      - name: checkout
+        uses: actions/checkout@v2
+      - name: caching
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-${{ runner.cpu-model }}-stable-build-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-${{ runner.cpu-model }}-stable-build-
+            ${{ runner.os }}-${{ runner.cpu-model }}-stable-
+      - name: ubuntu dependencies
+        run: |
+          sudo apt-get update && \
+          sudo apt-get -y install \
+          build-essential \
+          libgtk-3-dev \
+          libwebkit2gtk-4.0-dev \
+          libsoup2.4-dev \
+          curl \
+          wget \
+          libappindicator3-dev \
+          patchelf \
+          librsvg2-dev \
+          libprotobuf-dev \
+          protobuf-compiler
+      - name: Compile NPM
+        run: |
+          cd applications/launchpad/gui-vue
+          npm ci
+          npm run build
+      - name: toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+          override: true
+      - name: rustup show
+        run: |
+          rustup show
       - name: cargo build
         uses: actions-rs/cargo@v1
         with:
@@ -163,7 +214,7 @@ jobs:
       - name: Compile NPM
         run: |
           cd applications/launchpad/gui-vue
-          npm install
+          npm ci
           npm run build
       - name: toolchain
         uses: actions-rs/toolchain@v1
@@ -173,4 +224,4 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: test
-          args: --release
+          args: --release --all-targets
diff --git a/applications/tari_collectibles/src-tauri/src/app_state.rs b/applications/tari_collectibles/src-tauri/src/app_state.rs
index 8f2fa32163..b13a8bf9d3 100644
--- a/applications/tari_collectibles/src-tauri/src/app_state.rs
+++ b/applications/tari_collectibles/src-tauri/src/app_state.rs
@@ -74,11 +74,8 @@ impl ConcurrentAppState {
 
   pub async fn connect_base_node_client(&self) -> Result<BaseNodeClient, CollectiblesError> {
     let lock = self.inner.read().await;
-    let client = BaseNodeClient::connect(format!(
-      "http://{}",
-      lock.config.base_node_grpc_address.to_string()
-    ))
-    .await?;
+    let client =
+      BaseNodeClient::connect(format!("http://{}", lock.config.base_node_grpc_address)).await?;
     Ok(client)
   }
 
diff --git a/applications/tari_collectibles/src-tauri/src/main.rs b/applications/tari_collectibles/src-tauri/src/main.rs
index 85c77fb3b4..dabc4efb8b 100644
--- a/applications/tari_collectibles/src-tauri/src/main.rs
+++ b/applications/tari_collectibles/src-tauri/src/main.rs
@@ -1,4 +1,3 @@
-#![feature(array_methods)]
 #![cfg_attr(
   all(not(debug_assertions), target_os = "windows"),
   windows_subsystem = "windows"
diff --git a/base_layer/key_manager/Cargo.toml b/base_layer/key_manager/Cargo.toml
index cb8d4b9a87..cd281d6ecf 100644
--- a/base_layer/key_manager/Cargo.toml
+++ b/base_layer/key_manager/Cargo.toml
@@ -32,7 +32,7 @@ serde_json = "1.0.39"
 thiserror = "1.0.26"
 strum_macros = "0.22"
 strum = { version = "0.22", features = ["derive"] }
-wasm-bindgen = { version = "0.2", features = ["serde-serialize", "nightly"] }
+wasm-bindgen = { version = "0.2", features = ["serde-serialize", "nightly"], optional = true }
 wasm-bindgen-test = "0.3.28"
 
 [dev-dependencies]
@@ -41,3 +41,4 @@ sha2 = "0.9.8"
 [features]
 avx2 = ["tari_crypto/avx2"]
 js = ["getrandom/js", "js-sys"]
+wasm = ["wasm-bindgen", "js"]
diff --git a/base_layer/key_manager/Makefile b/base_layer/key_manager/Makefile
index efa926462c..41689d327c 100644
--- a/base_layer/key_manager/Makefile
+++ b/base_layer/key_manager/Makefile
@@ -1,19 +1,17 @@
-.PHONY: test
+toolchain=nightly-2021-11-20
 
+.phony: test
 test:
-	wasm-pack test --node --features js
-
-.PHONY: build
+	rustup run $(toolchain) wasm-pack test --node --features wasm
 
+.phony: build
 build:
-	wasm-pack build --target bundler . -- --features js
-
-.PHONY: install
+	rustup run $(toolchain) wasm-pack build --target bundler . -- --features wasm
 
+.phony: install
 install:
-	wasm-pack build --out-dir=../../applications/tari_web_extension/src/key_manager/ --target bundler . -- --features js
-
-.PHONY: web
+	rustup run $(toolchain) wasm-pack build --out-dir=../../applications/tari_web_extension/src/key_manager/ --target bundler . -- --features wasm
 
+.phony: web
 web:
-	wasm-pack build --target web . -- --features js
\ No newline at end of file
+	rustup run $(toolchain) wasm-pack build --target web . -- --features wasm
\ No newline at end of file
diff --git a/base_layer/key_manager/src/lib.rs b/base_layer/key_manager/src/lib.rs
index e9985c70de..ef4b1825e0 100644
--- a/base_layer/key_manager/src/lib.rs
+++ b/base_layer/key_manager/src/lib.rs
@@ -13,4 +13,5 @@ pub mod mnemonic;
 pub mod mnemonic_wordlists;
 //  https://github.com/rustwasm/wasm-bindgen/issues/2774
 #[allow(clippy::unused_unit)]
+#[cfg(feature = "wasm")]
 pub mod wasm;
diff --git a/base_layer/key_manager/src/wasm.rs b/base_layer/key_manager/src/wasm.rs
index aed0835ddb..9534ed1722 100644
--- a/base_layer/key_manager/src/wasm.rs
+++ b/base_layer/key_manager/src/wasm.rs
@@ -190,7 +190,7 @@ mod test {
         let next_key = response.key_manager.next_key().unwrap();
         assert_eq!(
             next_key.k.to_hex(),
-            "5a14f1205cfeb10d53af46e82b70e8832a544206f524b404e7a346148532910a".to_string()
+            "5c06999ed20e18bbb76245826141f8ae8700a648d87ec4da5a2a7507ce4b5f0e".to_string()
         )
     }
 
diff --git a/comms/dht/src/lib.rs b/comms/dht/src/lib.rs
index cb75344910..d2cd185154 100644
--- a/comms/dht/src/lib.rs
+++ b/comms/dht/src/lib.rs
@@ -1,4 +1,3 @@
-#![feature(map_entry_replace)]
 #![doc(html_root_url = "https://docs.rs/tower-filter/0.3.0-alpha.2")]
 #![cfg_attr(not(debug_assertions), deny(unused_variables))]
 #![cfg_attr(not(debug_assertions), deny(unused_imports))]
diff --git a/comms/dht/src/store_forward/local_state.rs b/comms/dht/src/store_forward/local_state.rs
index 50965dbdad..3dc064b80c 100644
--- a/comms/dht/src/store_forward/local_state.rs
+++ b/comms/dht/src/store_forward/local_state.rs
@@ -41,9 +41,9 @@ impl SafLocalState {
 
     pub fn register_inflight_request(&mut self, peer: NodeId) {
         match self.inflight_saf_requests.entry(peer) {
-            Entry::Occupied(entry) => {
+            Entry::Occupied(mut entry) => {
                 let (count, _) = *entry.get();
-                entry.replace_entry((count + 1, Instant::now()));
+                *entry.get_mut() = (count + 1, Instant::now());
             },
             Entry::Vacant(entry) => {
                 entry.insert((1, Instant::now()));
@@ -53,11 +53,11 @@ impl SafLocalState {
 
     pub fn mark_infight_response_received(&mut self, peer: NodeId) -> Option<Duration> {
         match self.inflight_saf_requests.entry(peer) {
-            Entry::Occupied(entry) => {
+            Entry::Occupied(mut entry) => {
                 let (count, ts) = *entry.get();
                 let reduced_count = count - 1;
                 if reduced_count > 0 {
-                    entry.replace_entry((reduced_count, ts));
+                    *entry.get_mut() = (reduced_count, ts);
                 } else {
                     entry.remove();
                 }