diff --git a/lib/emscripten/src/env.rs b/lib/emscripten/src/env.rs
index d686ddcce..8889906a7 100644
--- a/lib/emscripten/src/env.rs
+++ b/lib/emscripten/src/env.rs
@@ -143,14 +143,14 @@ pub extern "C" fn _getgrnam(name_ptr: c_int, vmctx: &mut Ctx) -> c_int {
 
 pub fn call_malloc(size: i32, vmctx: &mut Ctx) -> u32 {
     unimplemented!()
-//    let ret = instance
-//        .call("_malloc", &[Value::I32(size)])
-//        .expect("_malloc call failed");
-//    if let [Value::I32(x)] = ret.as_slice() {
-//        *x as u32
-//    } else {
-//        panic!("unexpected value from _malloc: {:?}", ret);
-//    }
+    //    let ret = instance
+    //        .call("_malloc", &[Value::I32(size)])
+    //        .expect("_malloc call failed");
+    //    if let [Value::I32(x)] = ret.as_slice() {
+    //        *x as u32
+    //    } else {
+    //        panic!("unexpected value from _malloc: {:?}", ret);
+    //    }
 }
 
 pub fn call_memalign(alignment: u32, size: u32, vmctx: &mut Ctx) -> u32 {
@@ -171,21 +171,21 @@ pub fn call_memalign(alignment: u32, size: u32, vmctx: &mut Ctx) -> u32 {
 
 pub fn call_memset(pointer: u32, value: i32, size: u32, vmctx: &mut Ctx) -> u32 {
     unimplemented!()
-//    let ret = instance
-//        .call(
-//            "_memset",
-//            &[
-//                Value::I32(pointer as i32),
-//                Value::I32(value),
-//                Value::I32(size as i32),
-//            ],
-//        )
-//        .expect("_memset call failed");
-//    if let [Value::I32(x)] = ret.as_slice() {
-//        *x as u32
-//    } else {
-//        panic!("unexpected value from _memset {:?}", ret);
-//    }
+    //    let ret = instance
+    //        .call(
+    //            "_memset",
+    //            &[
+    //                Value::I32(pointer as i32),
+    //                Value::I32(value),
+    //                Value::I32(size as i32),
+    //            ],
+    //        )
+    //        .expect("_memset call failed");
+    //    if let [Value::I32(x)] = ret.as_slice() {
+    //        *x as u32
+    //    } else {
+    //        panic!("unexpected value from _memset {:?}", ret);
+    //    }
 }
 
 pub extern "C" fn _getpagesize() -> u32 {
diff --git a/lib/emscripten/src/exception.rs b/lib/emscripten/src/exception.rs
index cf8a12ea6..7f062a546 100644
--- a/lib/emscripten/src/exception.rs
+++ b/lib/emscripten/src/exception.rs
@@ -1,6 +1,6 @@
 use super::env;
 use super::process::_abort;
-use wasmer_runtime_core::{Instance, vm::Ctx};
+use wasmer_runtime_core::{vm::Ctx, Instance};
 
 /// emscripten: ___cxa_allocate_exception
 pub extern "C" fn ___cxa_allocate_exception(size: u32, vmctx: &mut Ctx) -> u32 {
diff --git a/lib/emscripten/src/lib.rs b/lib/emscripten/src/lib.rs
index afc709bed..5c91fbd6a 100644
--- a/lib/emscripten/src/lib.rs
+++ b/lib/emscripten/src/lib.rs
@@ -9,16 +9,12 @@ use wasmer_runtime_core::{
     export::{Context, Export, FuncPointer, GlobalPointer, MemoryPointer, TablePointer},
     import::{ImportObject, Namespace},
     memory::LinearMemory,
+    structures::TypedIndex,
     table::TableBacking,
     types::{
-        FuncSig, GlobalDesc,
+        ElementType, FuncSig, GlobalDesc, LocalMemoryIndex, Memory, Table,
         Type::{self, *},
-        Memory,
-        LocalMemoryIndex,
-        ElementType,
-        Table,
     },
-    structures::TypedIndex,
     vm::LocalGlobal,
     vm::LocalMemory,
     vm::LocalTable,
@@ -183,7 +179,13 @@ impl<'a> EmscriptenGlobals<'a> {
         data.insert("env", env_namepace);
         data.insert("global", global_namepace);
 
-        Self { data, memory, vm_memory, table, vm_table }
+        Self {
+            data,
+            memory,
+            vm_memory,
+            table,
+            vm_table,
+        }
     }
 }
 
@@ -203,9 +205,7 @@ pub fn generate_emscripten_env(globals: &mut EmscriptenGlobals) -> ImportObject
     let null_ctx = Context::External(ptr::null_mut());
 
     // Memory
-    let local_memory = unsafe {
-        MemoryPointer::new(&mut globals.vm_memory)
-    };
+    let local_memory = unsafe { MemoryPointer::new(&mut globals.vm_memory) };
 
     env_namespace.insert(
         "memory".to_string(),
@@ -216,14 +216,12 @@ pub fn generate_emscripten_env(globals: &mut EmscriptenGlobals) -> ImportObject
                 min: 256,
                 max: Some(256),
                 shared: false,
-            }
+            },
         },
     );
 
     // Table
-    let local_table = unsafe {
-        TablePointer::new(&mut globals.vm_table)
-    };
+    let local_table = unsafe { TablePointer::new(&mut globals.vm_table) };
 
     env_namespace.insert(
         "table".to_string(),
@@ -235,7 +233,7 @@ pub fn generate_emscripten_env(globals: &mut EmscriptenGlobals) -> ImportObject
                 ty: ElementType::Anyfunc,
                 min: 10,
                 max: Some(10),
-            }
+            },
         },
     );
 
diff --git a/lib/emscripten/src/syscalls.rs b/lib/emscripten/src/syscalls.rs
index 3cafdcc64..fa395dfc9 100644
--- a/lib/emscripten/src/syscalls.rs
+++ b/lib/emscripten/src/syscalls.rs
@@ -105,11 +105,7 @@ pub extern "C" fn ___syscall1(which: c_int, mut varargs: VarArgs, vmctx: &mut Ct
 }
 
 /// read
-pub extern "C" fn ___syscall3(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> ssize_t {
+pub extern "C" fn ___syscall3(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> ssize_t {
     debug!("emscripten::___syscall3 (read) {}", which);
     let fd: i32 = varargs.get(vmctx);
     let buf: u32 = varargs.get(vmctx);
@@ -122,11 +118,7 @@ pub extern "C" fn ___syscall3(
 }
 
 /// write
-pub extern "C" fn ___syscall4(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall4(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall4 (write) {}", which);
     let fd: i32 = varargs.get(vmctx);
     let buf: u32 = varargs.get(vmctx);
@@ -137,11 +129,7 @@ pub extern "C" fn ___syscall4(
 }
 
 /// open
-pub extern "C" fn ___syscall5(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall5(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall5 (open) {}", which);
     let pathname: u32 = varargs.get(vmctx);
     let flags: i32 = varargs.get(vmctx);
@@ -157,11 +145,7 @@ pub extern "C" fn ___syscall5(
 }
 
 /// close
-pub extern "C" fn ___syscall6(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall6(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall6 (close) {}", which);
     let fd: i32 = varargs.get(vmctx);
     debug!("fd: {}", fd);
@@ -169,11 +153,7 @@ pub extern "C" fn ___syscall6(
 }
 
 // chdir
-pub extern "C" fn ___syscall12(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall12(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall12 (chdir) {}", which);
     let path_addr: i32 = varargs.get(vmctx);
     unsafe {
@@ -192,11 +172,7 @@ pub extern "C" fn ___syscall20() -> pid_t {
 }
 
 // mkdir
-pub extern "C" fn ___syscall39(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall39(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall39 (mkdir) {}", which);
     let pathname: u32 = varargs.get(vmctx);
     let mode: u32 = varargs.get(vmctx);
@@ -205,11 +181,7 @@ pub extern "C" fn ___syscall39(
 }
 
 // rmdir
-pub extern "C" fn ___syscall40(
-    _which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall40(_which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall40 (rmdir)");
     let pathname: u32 = varargs.get(vmctx);
     let pathname_addr = vmctx.memory(0)[pathname as usize] as *const i8;
@@ -217,11 +189,7 @@ pub extern "C" fn ___syscall40(
 }
 
 /// ioctl
-pub extern "C" fn ___syscall54(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall54(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall54 (ioctl) {}", which);
     let fd: i32 = varargs.get(vmctx);
     let request: u32 = varargs.get(vmctx);
@@ -263,11 +231,7 @@ pub extern "C" fn ___syscall54(
 }
 
 // setpgid
-pub extern "C" fn ___syscall57(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall57(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall57 (setpgid) {}", which);
     let pid: i32 = varargs.get(vmctx);
     let pgid: i32 = varargs.get(vmctx);
@@ -275,11 +239,7 @@ pub extern "C" fn ___syscall57(
 }
 
 // dup2
-pub extern "C" fn ___syscall63(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall63(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall63 (dup2) {}", which);
 
     let src: i32 = varargs.get(vmctx);
@@ -296,11 +256,7 @@ pub extern "C" fn ___syscall64() -> pid_t {
 
 // socketcall
 #[allow(clippy::cast_ptr_alignment)]
-pub extern "C" fn ___syscall102(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall102(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall102 (socketcall) {}", which);
     let call: u32 = varargs.get(vmctx);
     let mut socket_varargs: VarArgs = varargs.get(vmctx);
@@ -547,11 +503,7 @@ pub extern "C" fn ___syscall102(
 
 /// wait4
 #[allow(clippy::cast_ptr_alignment)]
-pub extern "C" fn ___syscall114(
-    _which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> pid_t {
+pub extern "C" fn ___syscall114(_which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> pid_t {
     debug!("emscripten::___syscall114 (wait4)");
     let pid: pid_t = varargs.get(vmctx);
     let status: u32 = varargs.get(vmctx);
@@ -569,11 +521,7 @@ pub extern "C" fn ___syscall114(
 
 /// uname
 // NOTE: Wondering if we should return custom utsname, like Emscripten.
-pub extern "C" fn ___syscall122(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall122(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall122 (uname) {}", which);
     let buf: u32 = varargs.get(vmctx);
     debug!("=> buf: {}", buf);
@@ -583,11 +531,7 @@ pub extern "C" fn ___syscall122(
 
 // select
 #[allow(clippy::cast_ptr_alignment)]
-pub extern "C" fn ___syscall142(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall142(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall142 (newselect) {}", which);
 
     let nfds: i32 = varargs.get(vmctx);
@@ -606,11 +550,7 @@ pub extern "C" fn ___syscall142(
 }
 
 // mmap2
-pub extern "C" fn ___syscall192(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall192(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall192 (mmap2) {}", which);
     let addr: i32 = varargs.get(vmctx);
     let len: u32 = varargs.get(vmctx);
@@ -636,11 +576,7 @@ pub extern "C" fn ___syscall192(
 }
 
 /// lseek
-pub extern "C" fn ___syscall140(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> off_t {
+pub extern "C" fn ___syscall140(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> off_t {
     debug!("emscripten::___syscall140 (lseek) {}", which);
     let fd: i32 = varargs.get(vmctx);
     let offset: i64 = varargs.get(vmctx);
@@ -651,11 +587,7 @@ pub extern "C" fn ___syscall140(
 
 /// readv
 #[allow(clippy::cast_ptr_alignment)]
-pub extern "C" fn ___syscall145(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> ssize_t {
+pub extern "C" fn ___syscall145(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> ssize_t {
     debug!("emscripten::___syscall145 (readv) {}", which);
     // let fd: i32 = varargs.get(vmctx);
     // let iov: u32 = varargs.get(vmctx);
@@ -695,11 +627,7 @@ pub extern "C" fn ___syscall145(
 
 // writev
 #[allow(clippy::cast_ptr_alignment)]
-pub extern "C" fn ___syscall146(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> ssize_t {
+pub extern "C" fn ___syscall146(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> ssize_t {
     debug!("emscripten::___syscall146 (writev) {}", which);
     let fd: i32 = varargs.get(vmctx);
     let iov: i32 = varargs.get(vmctx);
@@ -731,11 +659,7 @@ pub extern "C" fn ___syscall146(
 }
 
 // pread
-pub extern "C" fn ___syscall180(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall180(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall180 (pread) {}", which);
     let fd: i32 = varargs.get(vmctx);
     let buf: u32 = varargs.get(vmctx);
@@ -752,11 +676,7 @@ pub extern "C" fn ___syscall180(
 }
 
 // pwrite
-pub extern "C" fn ___syscall181(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall181(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall181 (pwrite) {}", which);
     let fd: i32 = varargs.get(vmctx);
     let buf: u32 = varargs.get(vmctx);
@@ -777,11 +697,7 @@ pub extern "C" fn ___syscall181(
 }
 
 // stat64
-pub extern "C" fn ___syscall195(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall195(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall195 (stat64) {}", which);
     let pathname: u32 = varargs.get(vmctx);
     let buf: u32 = varargs.get(vmctx);
@@ -801,11 +717,7 @@ pub extern "C" fn ___syscall195(
 }
 
 // fstat64
-pub extern "C" fn ___syscall197(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall197(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall197 (fstat64) {}", which);
     let fd: c_int = varargs.get(vmctx);
     let buf: u32 = varargs.get(vmctx);
@@ -842,11 +754,7 @@ pub extern "C" fn ___syscall202() -> gid_t {
 }
 
 // chown
-pub extern "C" fn ___syscall212(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall212(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall212 (chown) {}", which);
 
     let pathname: u32 = varargs.get(vmctx);
@@ -859,11 +767,7 @@ pub extern "C" fn ___syscall212(
 }
 
 // fcntl64
-pub extern "C" fn ___syscall221(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall221(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall221 (fcntl64) {}", which);
     // fcntl64
     let _fd: i32 = varargs.get(vmctx);
@@ -875,11 +779,7 @@ pub extern "C" fn ___syscall221(
 }
 
 /// dup3
-pub extern "C" fn ___syscall330(
-    _which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> pid_t {
+pub extern "C" fn ___syscall330(_which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> pid_t {
     // Implementation based on description at https://linux.die.net/man/2/dup3
     debug!("emscripten::___syscall330 (dup3)");
     let oldfd: c_int = varargs.get(vmctx);
@@ -913,11 +813,7 @@ pub extern "C" fn ___syscall330(
 }
 
 // prlimit64
-pub extern "C" fn ___syscall340(
-    which: c_int,
-    mut varargs: VarArgs,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___syscall340(which: c_int, mut varargs: VarArgs, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___syscall340 (prlimit64), {}", which);
     // NOTE: Doesn't really matter. Wasm modules cannot exceed WASM_PAGE_SIZE anyway.
     let _pid: i32 = varargs.get(vmctx);
diff --git a/lib/emscripten/src/time.rs b/lib/emscripten/src/time.rs
index bfaeb8331..e2991bffa 100644
--- a/lib/emscripten/src/time.rs
+++ b/lib/emscripten/src/time.rs
@@ -51,11 +51,7 @@ pub extern "C" fn _gettimeofday(tp: c_int, tz: c_int, vmctx: &mut Ctx) -> c_int
 
 /// emscripten: _clock_gettime
 #[allow(clippy::cast_ptr_alignment)]
-pub extern "C" fn _clock_gettime(
-    clk_id: libc::clockid_t,
-    tp: c_int,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn _clock_gettime(clk_id: libc::clockid_t, tp: c_int, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::_clock_gettime {} {}", clk_id, tp);
     #[repr(C)]
     struct GuestTimeSpec {
@@ -84,11 +80,7 @@ pub extern "C" fn _clock_gettime(
 }
 
 /// emscripten: ___clock_gettime
-pub extern "C" fn ___clock_gettime(
-    clk_id: libc::clockid_t,
-    tp: c_int,
-    vmctx: &mut Ctx,
-) -> c_int {
+pub extern "C" fn ___clock_gettime(clk_id: libc::clockid_t, tp: c_int, vmctx: &mut Ctx) -> c_int {
     debug!("emscripten::___clock_gettime {} {}", clk_id, tp);
     _clock_gettime(clk_id, tp, vmctx)
 }
diff --git a/lib/emscripten/src/utils.rs b/lib/emscripten/src/utils.rs
index 23bb9e68e..f98bfca1f 100644
--- a/lib/emscripten/src/utils.rs
+++ b/lib/emscripten/src/utils.rs
@@ -144,8 +144,8 @@ mod tests {
     fn should_detect_emscripten_files() {
         const wast_bytes: &[u8] = include_bytes!("tests/is_emscripten_true.wast");
         let wasm_binary = wat2wasm(wast_bytes.to_vec()).expect("Can't convert to wasm");
-        let module =
-            compile_with(&wasm_binary[..], &CraneliftCompiler::new()).expect("WASM can't be compiled");
+        let module = compile_with(&wasm_binary[..], &CraneliftCompiler::new())
+            .expect("WASM can't be compiled");
         let module = Arc::new(module);
         assert!(is_emscripten_module(&module));
     }
@@ -154,8 +154,8 @@ mod tests {
     fn should_detect_non_emscripten_files() {
         const wast_bytes: &[u8] = include_bytes!("tests/is_emscripten_false.wast");
         let wasm_binary = wat2wasm(wast_bytes.to_vec()).expect("Can't convert to wasm");
-        let module =
-            compile_with(&wasm_binary[..], &CraneliftCompiler::new()).expect("WASM can't be compiled");
+        let module = compile_with(&wasm_binary[..], &CraneliftCompiler::new())
+            .expect("WASM can't be compiled");
         let module = Arc::new(module);
         assert!(!is_emscripten_module(&module));
     }