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diff --git a/crates/swc_ecma_minifier/fuzz/Cargo.toml b/crates/swc_ecma_minifier/fuzz/Cargo.toml
new file mode 100644
index 00000000000..d5958aea0e0
--- /dev/null
+++ b/crates/swc_ecma_minifier/fuzz/Cargo.toml
@@ -0,0 +1,31 @@
+[package]
+authors = ["Automatically generated"]
+edition = "2018"
+name    = "swc_ecma_minifier-fuzz"
+publish = false
+version = "0.0.0"
+
+  [package.metadata]
+  cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys            = "0.4"
+swc_common               = { path = "../../swc_common", features = ["arbitrary"] }
+swc_ecma_ast             = { path = "../../swc_ecma_ast", features = ["arbitrary"] }
+swc_ecma_codegen         = { path = "../../swc_ecma_codegen" }
+swc_ecma_minifier        = { path = ".." }
+swc_ecma_parser          = { path = "../../swc_ecma_parser" }
+swc_ecma_testing         = { path = "../../swc_ecma_testing" }
+swc_ecma_transforms_base = { path = "../../swc_ecma_transforms_base" }
+swc_ecma_visit           = { path = "../../swc_ecma_visit" }
+testing                  = { path = "../../testing" }
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+doc  = false
+name = "bug"
+path = "fuzz_targets/bug.rs"
+test = false
diff --git a/crates/swc_ecma_minifier/fuzz/fuzz_targets/bug.rs b/crates/swc_ecma_minifier/fuzz/fuzz_targets/bug.rs
new file mode 100644
index 00000000000..302cf7b118f
--- /dev/null
+++ b/crates/swc_ecma_minifier/fuzz/fuzz_targets/bug.rs
@@ -0,0 +1,113 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+use swc_common::{sync::Lrc, FileName, Mark, SourceMap};
+use swc_ecma_ast::{Module, Program};
+use swc_ecma_codegen::text_writer::{omit_trailing_semi, JsWriter};
+use swc_ecma_minifier::{
+    optimize,
+    option::{ExtraOptions, MangleOptions, MinifyOptions},
+};
+use swc_ecma_parser::parse_file_as_module;
+use swc_ecma_testing::{exec_node_js, JsExecOptions};
+use swc_ecma_transforms_base::{fixer::fixer, resolver};
+use swc_ecma_visit::FoldWith;
+
+fuzz_target!(|module: Module| {
+    testing::run_test(false, |cm, handler| {
+        // fuzzed code goes here
+
+        let code = print(cm.clone(), &[&module], true);
+        {
+            // Fuzzing produced a syntax error
+
+            if exec_node_js(
+                &code,
+                JsExecOptions {
+                    cache: false,
+                    ..Default::default()
+                },
+            )
+            .is_err()
+            {
+                return Ok(());
+            }
+        }
+        let unresolved_mark = Mark::new();
+        let top_level_mark = Mark::new();
+
+        let fm = cm.new_source_file(FileName::Anon, code);
+
+        let mut program = parse_file_as_module(
+            &fm,
+            Default::default(),
+            Default::default(),
+            None,
+            &mut vec![],
+        )
+        .map_err(|err| {
+            err.into_diagnostic(handler).emit();
+        })
+        .map(Program::Module)
+        .unwrap();
+
+        program = program.fold_with(&mut resolver(unresolved_mark, top_level_mark, false));
+
+        let output = optimize(
+            program,
+            cm.clone(),
+            None,
+            None,
+            &MinifyOptions {
+                compress: Some(Default::default()),
+                mangle: Some(MangleOptions {
+                    top_level: true,
+                    ..Default::default()
+                }),
+                ..Default::default()
+            },
+            &ExtraOptions {
+                unresolved_mark,
+                top_level_mark,
+            },
+        )
+        .expect_module();
+
+        let output = output.fold_with(&mut fixer(None));
+
+        let code = print(cm, &[output], true);
+
+        exec_node_js(
+            &code,
+            JsExecOptions {
+                cache: false,
+                ..Default::default()
+            },
+        )
+        .unwrap();
+
+        Ok(())
+    })
+    .unwrap();
+});
+
+fn print<N: swc_ecma_codegen::Node>(cm: Lrc<SourceMap>, nodes: &[N], minify: bool) -> String {
+    let mut buf = vec![];
+
+    {
+        let mut emitter = swc_ecma_codegen::Emitter {
+            cfg: swc_ecma_codegen::Config {
+                minify,
+                ..Default::default()
+            },
+            cm: cm.clone(),
+            comments: None,
+            wr: omit_trailing_semi(JsWriter::new(cm, "\n", &mut buf, None)),
+        };
+
+        for n in nodes {
+            n.emit_with(&mut emitter).unwrap();
+        }
+    }
+
+    String::from_utf8(buf).unwrap()
+}
diff --git a/crates/swc_ecma_minifier/src/compress/optimize/mod.rs b/crates/swc_ecma_minifier/src/compress/optimize/mod.rs
index 0bd268db57c..56edd29e358 100644
--- a/crates/swc_ecma_minifier/src/compress/optimize/mod.rs
+++ b/crates/swc_ecma_minifier/src/compress/optimize/mod.rs
@@ -1,7 +1,5 @@
 use std::{iter::once, mem::take};
 
-#[allow(unused_imports)]
-use retain_mut::RetainMut;
 use rustc_hash::{FxHashMap, FxHashSet};
 use swc_atoms::{js_word, JsWord};
 use swc_common::{
diff --git a/crates/swc_ecma_minifier/src/compress/optimize/sequences.rs b/crates/swc_ecma_minifier/src/compress/optimize/sequences.rs
index 1bde493c78a..a79b89b455c 100644
--- a/crates/swc_ecma_minifier/src/compress/optimize/sequences.rs
+++ b/crates/swc_ecma_minifier/src/compress/optimize/sequences.rs
@@ -1,7 +1,5 @@
 use std::mem::take;
 
-#[allow(unused_imports)]
-use retain_mut::RetainMut;
 use swc_atoms::js_word;
 use swc_common::{util::take::Take, Spanned, DUMMY_SP};
 use swc_ecma_ast::*;