diff --git a/lib/jit/src/context.rs b/lib/jit/src/context.rs
index f2c4f0c1ad..1b36f9bc0a 100644
--- a/lib/jit/src/context.rs
+++ b/lib/jit/src/context.rs
@@ -93,7 +93,7 @@ impl Context {
             &mut *self.compiler,
             &data,
             &mut self.namespace,
-            Rc::clone(&mut self.global_exports),
+            Rc::clone(&self.global_exports),
         )
     }
 
@@ -170,11 +170,11 @@ impl Context {
         instance_name: &str,
         field: &str,
     ) -> Result<ActionOutcome, ContextError> {
-        let mut instance = self
+        let instance = self
             .get_instance(&instance_name)
             .map_err(ContextError::Instance)?
             .clone();
-        self.get(&mut instance, field).map_err(ContextError::Action)
+        self.get(&instance, field).map_err(ContextError::Action)
     }
 
     /// Get the value of an exported global variable from an instance.
diff --git a/lib/jit/src/link.rs b/lib/jit/src/link.rs
index a9a1af92cf..9fbfbdc544 100644
--- a/lib/jit/src/link.rs
+++ b/lib/jit/src/link.rs
@@ -44,7 +44,7 @@ pub fn link_module(
                             signature, import_signature)
                         ));
                     }
-                    dependencies.insert(InstanceHandle::from_vmctx(vmctx));
+                    dependencies.insert(unsafe { InstanceHandle::from_vmctx(vmctx) });
                     function_imports.push(VMFunctionImport {
                         body: address,
                         vmctx,
@@ -82,7 +82,7 @@ pub fn link_module(
                             module_name, field,
                         )));
                     }
-                    dependencies.insert(InstanceHandle::from_vmctx(vmctx));
+                    dependencies.insert(unsafe { InstanceHandle::from_vmctx(vmctx) });
                     table_imports.push(VMTableImport {
                         from: definition,
                         vmctx,
@@ -136,7 +136,7 @@ pub fn link_module(
                     }
                     assert!(memory.offset_guard_size >= import_memory.offset_guard_size);
 
-                    dependencies.insert(InstanceHandle::from_vmctx(vmctx));
+                    dependencies.insert(unsafe { InstanceHandle::from_vmctx(vmctx) });
                     memory_imports.push(VMMemoryImport {
                         from: definition,
                         vmctx,
@@ -180,7 +180,7 @@ pub fn link_module(
                             module_name, field
                         )));
                     }
-                    dependencies.insert(InstanceHandle::from_vmctx(vmctx));
+                    dependencies.insert(unsafe { InstanceHandle::from_vmctx(vmctx) });
                     global_imports.push(VMGlobalImport { from: definition });
                 }
             },
diff --git a/lib/runtime/src/instance.rs b/lib/runtime/src/instance.rs
index 21fe4d5085..c3a25f70a0 100644
--- a/lib/runtime/src/instance.rs
+++ b/lib/runtime/src/instance.rs
@@ -760,8 +760,8 @@ impl InstanceHandle {
 
     /// Create a new `InstanceHandle` pointing at the instance
     /// pointed to by the given `VMContext` pointer.
-    pub fn from_vmctx(vmctx: *mut VMContext) -> Self {
-        let instance = unsafe { (&mut *vmctx).instance() };
+    pub unsafe fn from_vmctx(vmctx: *mut VMContext) -> Self {
+        let instance = (&mut *vmctx).instance();
         instance.refcount += 1;
         Self { instance }
     }
diff --git a/src/wasm2obj.rs b/src/wasm2obj.rs
index 89e584d991..57eaacf612 100644
--- a/src/wasm2obj.rs
+++ b/src/wasm2obj.rs
@@ -11,7 +11,7 @@
     unstable_features
 )]
 #![warn(unused_import_braces)]
-#![cfg_attr(feature = "clippy", plugin(clippy(conf_file = "../../clippy.toml")))]
+#![cfg_attr(feature = "clippy", plugin(clippy(conf_file = "../clippy.toml")))]
 #![cfg_attr(
     feature = "cargo-clippy",
     allow(clippy::new_without_default, clippy::new_without_default_derive)
diff --git a/src/wasmtime.rs b/src/wasmtime.rs
index 5128f248dc..a202585e7c 100644
--- a/src/wasmtime.rs
+++ b/src/wasmtime.rs
@@ -12,7 +12,7 @@
     unstable_features
 )]
 #![warn(unused_import_braces)]
-#![cfg_attr(feature = "clippy", plugin(clippy(conf_file = "../../clippy.toml")))]
+#![cfg_attr(feature = "clippy", plugin(clippy(conf_file = "../clippy.toml")))]
 #![cfg_attr(
     feature = "cargo-clippy",
     allow(clippy::new_without_default, clippy::new_without_default_derive)