diff --git a/src/frontend.rs b/src/frontend.rs
index ca65f01..d805f56 100644
--- a/src/frontend.rs
+++ b/src/frontend.rs
@@ -140,7 +140,7 @@ pub fn lower_module(pa_module: parser::Module) -> Result<String, CompileError> {
             parser::ModuleItem::Assign(assignment) => {
                 lower_assignment(&context, &mut ir_module, assignment)?
             }
-            parser::ModuleItem::Proc(proc) => todo!("lowering process"),
+            parser::ModuleItem::Proc(_proc) => todo!("lowering process"),
         }
     }
     ir_module.write_rtlil(&mut writer);
diff --git a/src/main.rs b/src/main.rs
index e64ca98..700858b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,7 +4,7 @@ mod literals;
 mod parser;
 mod rtlil;
 
-use nom::error::convert_error;
+
 use std::fs::File;
 use std::io::prelude::*;
 use std::path::PathBuf;
diff --git a/src/parser.rs b/src/parser.rs
index 9e56ada..af03e33 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -5,9 +5,9 @@ use nom::{
     branch::alt,
     bytes::complete::tag,
     character::complete::{alpha1, alphanumeric1, char, multispace0, multispace1, u64 as decimal},
-    combinator::{consumed, map, opt, recognize},
+    combinator::{map, opt, recognize},
     error::{context, ParseError, VerboseError},
-    multi::{many0, many1, separated_list0},
+    multi::{many0, separated_list0},
     sequence::{delimited, pair, preceded, separated_pair, terminated, tuple},
 };
 
diff --git a/src/parser/module.rs b/src/parser/module.rs
index 33b78f3..869120e 100644
--- a/src/parser/module.rs
+++ b/src/parser/module.rs
@@ -1,17 +1,16 @@
 use nom::{
     branch::alt,
     bytes::complete::tag,
-    character::complete::{alpha1, alphanumeric1, char, multispace0, multispace1, u64 as decimal},
-    combinator::{consumed, map, opt, recognize},
-    error::{context, ParseError, VerboseError},
-    multi::{many0, many1, separated_list0},
-    sequence::{delimited, pair, preceded, separated_pair, terminated, tuple},
+    character::complete::char,
+    combinator::{consumed, map},
+    error::context,
+    multi::{many1, separated_list0},
+    sequence::{delimited, tuple},
 };
 
-use crate::parser::proc::{proc_block, ProcBlock};
 use crate::parser::{
-    assign_statement, declaration, identifier, intliteral, widthspec, ws0, Assign, IResult,
-    NetDecl, Span,
+    assign_statement, declaration, identifier, ws0, Assign, IResult,
+    NetDecl, Span, proc::{proc_block, ProcBlock},
 };
 
 #[derive(Debug)]
@@ -63,8 +62,8 @@ fn ports_list(input: Span) -> IResult<Span, Vec<PortDecl>> {
 
 fn module_item(input: Span) -> IResult<Span, ModuleItem> {
     alt((
-        map(assign_statement, |assig| ModuleItem::Assign(assig)),
-        map(proc_block, |proc| ModuleItem::Proc(proc)),
+        map(assign_statement, ModuleItem::Assign),
+        map(proc_block, ModuleItem::Proc),
     ))(input)
 }
 
diff --git a/src/parser/proc.rs b/src/parser/proc.rs
index a87e6da..0d69bef 100644
--- a/src/parser/proc.rs
+++ b/src/parser/proc.rs
@@ -1,11 +1,10 @@
 use nom::{
-    branch::alt,
     bytes::complete::tag,
-    character::complete::{alpha1, alphanumeric1, char, multispace0, multispace1, u64 as decimal},
-    combinator::{consumed, map, opt, recognize},
-    error::{context, ParseError, VerboseError},
-    multi::{many0, many1, separated_list0},
-    sequence::{delimited, pair, preceded, separated_pair, terminated, tuple},
+    character::complete::char,
+    combinator::map,
+    error::context,
+    multi::many0,
+    sequence::{delimited, tuple},
 };
 
 use crate::parser::{identifier, ws0, Expression, IResult, Span};