Suppress unusefull warning

Author: natir

src/io/mhap.rs

@@ -116,6 +116,7 @@ pub struct Writer<W: std::io::Write> {
 
 impl Writer<fs::File> {
     /// Write to a given file path in given format.
+    #[allow(dead_code)]
     pub fn to_file<P: AsRef<Path>>(path: P) -> std::io::Result<Self> {
         fs::File::create(path).map(|f| Writer::new(f))
     }

src/io/paf.rs

@@ -125,6 +125,7 @@ pub struct Writer<W: std::io::Write> {
 
 impl Writer<fs::File> {
     /// Write to a given file path in given format.
+    #[allow(dead_code)]
     pub fn to_file<P: AsRef<Path>>(path: P) -> std::io::Result<Self> {
         fs::File::create(path).map(|f| Writer::new(f))
     }

tests/realistic_scenario.rs

@@ -25,6 +25,7 @@ extern crate xz2;
 
 use std::collections::HashSet;
 use std::fs;
+#[allow(unused_imports)]
 use std::io::Read;
 use std::process::{Command, Stdio};