diff --git a/src/apis/emscripten/env.rs b/src/apis/emscripten/env.rs
index 1db352433..1f2011090 100644
--- a/src/apis/emscripten/env.rs
+++ b/src/apis/emscripten/env.rs
@@ -1,4 +1,3 @@
-use super::super::host;
 /// NOTE: These syscalls only support wasm_32 for now because they take u32 offset
 use libc::{
     c_int, c_long, getenv, getgrnam as libc_getgrnam, getpwnam as libc_getpwnam, putenv, setenv,
@@ -9,7 +8,6 @@ use std::mem;
 use std::os::raw::c_char;
 
 use super::utils::{allocate_on_stack, copy_cstr_into_wasm, copy_terminated_array_of_cstrs};
-use crate::apis::emscripten::env;
 use crate::apis::emscripten::EmscriptenData;
 use crate::runtime::{types::Value, Instance};
 
diff --git a/src/apis/emscripten/math.rs b/src/apis/emscripten/math.rs
index 9f33e5366..c39f3028c 100644
--- a/src/apis/emscripten/math.rs
+++ b/src/apis/emscripten/math.rs
@@ -1,5 +1,3 @@
-use crate::webassembly::Instance;
-
 /// emscripten: _llvm_log10_f64
 pub extern "C" fn _llvm_log10_f64(value: f64) -> f64 {
     debug!("emscripten::_llvm_log10_f64");
diff --git a/src/apis/emscripten/mod.rs b/src/apis/emscripten/mod.rs
index 7e5838d50..1174cd427 100644
--- a/src/apis/emscripten/mod.rs
+++ b/src/apis/emscripten/mod.rs
@@ -1,5 +1,5 @@
 use crate::runtime::memory::LinearMemory;
-use crate::runtime::types::{ElementType, FuncSig, Table, Type, Value};
+use crate::runtime::types::{FuncSig, Type, Value};
 use crate::runtime::{Import, Imports, Instance};
 /// NOTE: TODO: These emscripten api implementation only support wasm32 for now because they assume offsets are u32
 use byteorder::{ByteOrder, LittleEndian};
diff --git a/src/apis/emscripten/time.rs b/src/apis/emscripten/time.rs
index d6fdd71bf..3f04c9360 100644
--- a/src/apis/emscripten/time.rs
+++ b/src/apis/emscripten/time.rs
@@ -1,5 +1,5 @@
 use super::utils::{copy_cstr_into_wasm, write_to_buf};
-use libc::{c_char, c_int, localtime, localtime_r, time as libc_time, time_t, timespec, tm};
+use libc::{c_char, c_int, time as libc_time, time_t};
 use std::mem;
 use std::time::SystemTime;
 
diff --git a/src/apis/emscripten/utils.rs b/src/apis/emscripten/utils.rs
index 3d83c2416..f4c7fe81d 100644
--- a/src/apis/emscripten/utils.rs
+++ b/src/apis/emscripten/utils.rs
@@ -1,13 +1,11 @@
 use crate::runtime::{Instance, Module};
 //use crate::webassembly::Instance;
 use crate::apis::emscripten::env;
-use byteorder::{ByteOrder, LittleEndian};
 use libc::stat;
 use std::ffi::CStr;
 use std::mem::size_of;
 use std::os::raw::c_char;
 use std::slice;
-use std::sync::Arc;
 /// We check if a provided module is an Emscripten generated one
 pub fn is_emscripten_module(module: &Module) -> bool {
     for (_, import_name) in &module.imported_functions {
diff --git a/src/apis/host/posix/env.rs b/src/apis/host/posix/env.rs
index 5943e589b..424e7a9cf 100644
--- a/src/apis/host/posix/env.rs
+++ b/src/apis/host/posix/env.rs
@@ -1,6 +1,3 @@
-use crate::webassembly::Instance;
-use std::env;
-
 // pub extern "C" fn get_env(name: &str, _instance: &mut Instance) -> Result<String, env::VarError> {
 //     debug!("host::get_env({:?})", name);
 //     env::var(name)
diff --git a/src/common/file_descriptor.rs b/src/common/file_descriptor.rs
index 33019a6bf..6e6053cdc 100644
--- a/src/common/file_descriptor.rs
+++ b/src/common/file_descriptor.rs
@@ -1,4 +1,3 @@
-use std::ffi::CString;
 use std::io;
 use std::io::Error;
 use std::io::ErrorKind;
diff --git a/src/emtests/_common.rs b/src/emtests/_common.rs
index a5c3ce147..d7ee4735b 100644
--- a/src/emtests/_common.rs
+++ b/src/emtests/_common.rs
@@ -2,8 +2,7 @@ macro_rules! assert_emscripten_output {
     ($file:expr, $name:expr, $args:expr, $expected:expr) => {{
         use crate::apis::generate_emscripten_env;
         use crate::common::stdio::StdioCapturer;
-        use crate::runtime::types::{ElementType, FuncSig, Table, Type, Value};
-        use crate::runtime::{Import, Imports, InstanceABI, InstanceOptions};
+        use crate::runtime::{InstanceABI, InstanceOptions};
         use crate::webassembly::{get_isa, instantiate, start_instance};
         use std::sync::Arc;
 
diff --git a/src/webassembly/mod.rs b/src/webassembly/mod.rs
index 554da3fef..6049eea11 100644
--- a/src/webassembly/mod.rs
+++ b/src/webassembly/mod.rs
@@ -10,8 +10,6 @@ use cranelift_codegen::{
     isa,
     settings::{self, Configurable},
 };
-use cranelift_wasm::ModuleEnvironment;
-use std::io::{self, Write};
 use std::panic;
 use std::str::FromStr;
 use std::sync::Arc;