diff --git a/Makefile b/Makefile
index 360439c71..3ff029c1c 100644
--- a/Makefile
+++ b/Makefile
@@ -207,11 +207,17 @@ check-bench-llvm:
 
 check-bench: check-bench-singlepass check-bench-llvm
 
+check-kernel-net:
+	cargo check -p kernel-net --target=wasm32-wasi
+
+# checks that require a nightly version of Rust
+check-nightly: check-kernel-net
+
 # TODO: We wanted `--workspace --exclude wasmer-runtime`, but can't due
 # to https://github.com/rust-lang/cargo/issues/6745 .
 NOT_RUNTIME_CRATES = -p wasmer-clif-backend -p wasmer-singlepass-backend -p wasmer-middleware-common -p wasmer-runtime-core -p wasmer-emscripten -p wasmer-llvm-backend -p wasmer-wasi -p wasmer-kernel-loader -p wasmer-interface-types
 RUNTIME_CHECK = cargo check --manifest-path lib/runtime/Cargo.toml --no-default-features
-check: check-bench check-kernel-net
+check: check-bench
 	cargo check $(NOT_RUNTIME_CRATES)
 	cargo check --release $(NOT_RUNTIME_CRATES)
 	cargo check --all-features $(NOT_RUNTIME_CRATES)
@@ -263,8 +269,6 @@ check: check-bench check-kernel-net
 		--features=llvm,default-backend-llvm
 		--features=default-backend-singlepass,singlepass,cranelift,llvm,cache,deterministic-execution
 
-check-kernel-net: cargo +nightly check -p kernel-net --target=wasm32-wasi
-
 # Release
 release:
 	cargo build --release --features backend-singlepass,backend-cranelift,backend-llvm,loader-kernel,experimental-io-devices,log/release_max_level_off
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index e439e09bc..701ec36e9 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -116,7 +116,9 @@ jobs:
       - template: .azure/install-llvm.yml
       - template: .azure/install-sccache.yml
       - template: .azure/install-cmake.yml
-      - bash: make check
+      - bash: |
+          make check
+          make check-nightly
         displayName: Check with Flags
         condition: and(succeeded(), not(eq(variables['Agent.OS'], 'Windows_NT')))
 
diff --git a/lib/runtime-core/src/memory/ptr.rs b/lib/runtime-core/src/memory/ptr.rs
index 9e991cb85..67cb58290 100644
--- a/lib/runtime-core/src/memory/ptr.rs
+++ b/lib/runtime-core/src/memory/ptr.rs
@@ -301,7 +301,7 @@ mod test {
         assert!(unsafe { end_wasm_ptr_array.deref_mut(&memory, 0, 1).is_some() });
         let invalid_idx_len_combos: [(u32, u32); 3] =
             [(last_valid_address_for_u8 + 1, 0), (0, 2), (1, 1)];
-        for &(idx, len) in invalid_idx_len_combos.into_iter() {
+        for &(idx, len) in invalid_idx_len_combos.iter() {
             assert!(end_wasm_ptr_array.deref(&memory, idx, len).is_none());
             assert!(unsafe { end_wasm_ptr_array.deref_mut(&memory, idx, len).is_none() });
         }
@@ -322,7 +322,7 @@ mod test {
             WasmPtr::new(last_valid_address_for_u32 + 3),
             WasmPtr::new(last_valid_address_for_u32 + 4),
         ];
-        for oob_end_ptr in end_wasm_ptr_oob_array.into_iter() {
+        for oob_end_ptr in end_wasm_ptr_oob_array.iter() {
             assert!(oob_end_ptr.deref(&memory).is_none());
             assert!(unsafe { oob_end_ptr.deref_mut(&memory).is_none() });
         }
@@ -332,7 +332,7 @@ mod test {
 
         let invalid_idx_len_combos: [(u32, u32); 3] =
             [(last_valid_address_for_u32 + 1, 0), (0, 2), (1, 1)];
-        for &(idx, len) in invalid_idx_len_combos.into_iter() {
+        for &(idx, len) in invalid_idx_len_combos.iter() {
             assert!(end_wasm_ptr_array.deref(&memory, idx, len).is_none());
             assert!(unsafe { end_wasm_ptr_array.deref_mut(&memory, idx, len).is_none() });
         }
@@ -344,7 +344,7 @@ mod test {
             WasmPtr::new(last_valid_address_for_u32 + 4),
         ];
 
-        for oob_end_array_ptr in end_wasm_ptr_array_oob_array.into_iter() {
+        for oob_end_array_ptr in end_wasm_ptr_array_oob_array.iter() {
             assert!(oob_end_array_ptr.deref(&memory, 0, 1).is_none());
             assert!(unsafe { oob_end_array_ptr.deref_mut(&memory, 0, 1).is_none() });
             assert!(oob_end_array_ptr.deref(&memory, 1, 0).is_none());