diff --git a/lib/emscripten/src/env/mod.rs b/lib/emscripten/src/env/mod.rs
index 99888c5bb..a0552843c 100644
--- a/lib/emscripten/src/env/mod.rs
+++ b/lib/emscripten/src/env/mod.rs
@@ -22,11 +22,23 @@ use wasmer_runtime_core::{
 };
 
 pub fn call_malloc(ctx: &mut Ctx, size: u32) -> u32 {
-    get_emscripten_data(ctx).malloc.as_ref().unwrap().call(size).unwrap()
+    get_emscripten_data(ctx)
+        .malloc
+        .as_ref()
+        .unwrap()
+        .call(size)
+        .unwrap()
 }
 
 pub fn call_malloc_with_cast<T: Copy, Ty>(ctx: &mut Ctx, size: u32) -> WasmPtr<T, Ty> {
-    WasmPtr::new(get_emscripten_data(ctx).malloc.as_ref().unwrap().call(size).unwrap())
+    WasmPtr::new(
+        get_emscripten_data(ctx)
+            .malloc
+            .as_ref()
+            .unwrap()
+            .call(size)
+            .unwrap(),
+    )
 }
 
 pub fn call_memalign(ctx: &mut Ctx, alignment: u32, size: u32) -> u32 {
diff --git a/lib/emscripten/src/lib.rs b/lib/emscripten/src/lib.rs
index 964849aee..544967ac0 100644
--- a/lib/emscripten/src/lib.rs
+++ b/lib/emscripten/src/lib.rs
@@ -167,7 +167,10 @@ impl<'a> EmscriptenData<'a> {
     ) -> EmscriptenData<'a> {
         let malloc = instance.func("_malloc").or(instance.func("malloc")).ok();
         let free = instance.func("_free").or(instance.func("free")).ok();
-        let memalign = instance.func("_memalign").or(instance.func("memalign")).ok();
+        let memalign = instance
+            .func("_memalign")
+            .or(instance.func("memalign"))
+            .ok();
         let memset = instance.func("_memset").or(instance.func("memset")).ok();
         let stack_alloc = instance.func("stackAlloc").ok();
 
@@ -228,7 +231,10 @@ impl<'a> EmscriptenData<'a> {
 
         let stack_save = instance.func("stackSave").ok();
         let stack_restore = instance.func("stackRestore").ok();
-        let set_threw = instance.func("_setThrew").or(instance.func("setThrew")).ok();
+        let set_threw = instance
+            .func("_setThrew")
+            .or(instance.func("setThrew"))
+            .ok();
 
         EmscriptenData {
             malloc,
@@ -334,15 +340,11 @@ pub fn run_emscripten_instance(
         instance.call(&ep, &[Value::I32(arg as i32)])?;
     } else {
         let (func_name, main_func) = match instance.dyn_func("_main") {
-            Ok(func) => {
-                Ok(("_main", func))
+            Ok(func) => Ok(("_main", func)),
+            Err(_e) => match instance.dyn_func("main") {
+                Ok(func) => Ok(("main", func)),
+                Err(e) => Err(e),
             },
-            Err(_e) => {
-                match instance.dyn_func("main") {
-                    Ok(func) => Ok(("main", func)),
-                    Err(e) => Err(e)
-                }
-            }
         }?;
         let num_params = main_func.signature().params().len();
         let _result = match num_params {
@@ -350,7 +352,10 @@ pub fn run_emscripten_instance(
                 let mut new_args = vec![path];
                 new_args.extend(args);
                 let (argc, argv) = store_module_arguments(instance.context_mut(), new_args);
-                instance.call(func_name, &[Value::I32(argc as i32), Value::I32(argv as i32)])?;
+                instance.call(
+                    func_name,
+                    &[Value::I32(argc as i32), Value::I32(argv as i32)],
+                )?;
             }
             0 => {
                 instance.call(func_name, &[])?;
diff --git a/lib/emscripten/src/pthread.rs b/lib/emscripten/src/pthread.rs
index 04cc3a825..ac7e70838 100644
--- a/lib/emscripten/src/pthread.rs
+++ b/lib/emscripten/src/pthread.rs
@@ -13,7 +13,9 @@ pub fn _pthread_attr_getstack(
 ) -> i32 {
     trace!(
         "emscripten::_pthread_attr_getstack({}, {}, {})",
-        _stackaddr, _stacksize, _other
+        _stackaddr,
+        _stacksize,
+        _other
     );
     // TODO: Translate from Emscripten
     // HEAP32[stackaddr >> 2] = STACK_BASE;
diff --git a/lib/emscripten/src/utils.rs b/lib/emscripten/src/utils.rs
index 356b644eb..e3370fdad 100644
--- a/lib/emscripten/src/utils.rs
+++ b/lib/emscripten/src/utils.rs
@@ -24,7 +24,9 @@ pub fn is_emscripten_module(module: &Module) -> bool {
             .namespace_table
             .get(import_name.namespace_index);
         let field = module.info().name_table.get(import_name.name_index);
-        if (field == "_emscripten_memcpy_big" || field=="emscripten_memcpy_big") && namespace == "env" {
+        if (field == "_emscripten_memcpy_big" || field == "emscripten_memcpy_big")
+            && namespace == "env"
+        {
             return true;
         }
     }