2 files changed, 18 insertions, 25 deletions

diff --git a/src/base62.rs b/src/base62.rs
index 6ec1e62..a556b13 100644
--- a/src/base62.rs
+++ b/src/base62.rs
@@ -1,6 +1,3 @@
-use std::iter;
-use itertools;
-
 pub const BASE: u8 = 62;
 pub const ALPHABET: &'static [u8; BASE as usize] = 
     b"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
@@ -17,6 +14,7 @@ pub fn number_to_digits(mut x: u128, base: u8) -> Vec<u8> {
     out
 }
 
+#[allow(dead_code)]
 pub fn digits_to_number<I>(x: I, base: u8) -> u128
 where I: Iterator<Item=u8> {
     let base = base as u128;
diff --git a/src/main.rs b/src/main.rs
index f1f0ae2..c50f44f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,28 +4,22 @@ use std::{
     env, iter,
     fs::File,
     io::{ self, Read, BufRead, BufReader, Write },
-    iter::FromIterator,
-    path::PathBuf,
-    sync::Arc,
-    collections::HashMap
+    path::PathBuf
 };
 
-use itertools::{ self, Itertools };
-use url::Url;
+use itertools;
 use rand;
 
-use serde::{ Serialize, Deserialize };
-use serde_value::to_value;
-use config::{ Config, Source };
+use config::Config;
 use structopt::{ StructOpt, clap::ArgGroup };
 
 use mime_guess::{ Mime, guess_mime_type_opt };
 
-use futures::{ stream, Future };
+use futures::stream;
 use rusoto_core::{
     request,
     Region, ByteStream,
-    credential::{ ProvideAwsCredentials, StaticProvider }
+    credential::StaticProvider
 };
 use rusoto_s3::{
     S3, S3Client,
@@ -84,13 +78,14 @@ fn main() {
             .or(xdg_file);
         if let Some(cfg_file) = cfg_file {
             let cfg_file = cfg_file.to_str().expect("Config file has invalid path");
-            cfg.merge(config::File::new(cfg_file, config::FileFormat::Json));
+            cfg.merge(config::File::new(cfg_file, config::FileFormat::Json))
+                .expect("Failed to read settings from config file");
         }
         cfg.merge(config::Environment::with_prefix("PB")).expect("Failed to read config from environment");
         cfg.merge(Config::try_from(&opt).unwrap()).expect("Failed to read config from CLI arguments");
 
         if cfg.get_bool("private").unwrap_or(false) {
-            cfg.set("id_length", 10);
+            cfg.set("id_length", 10).unwrap();
         }
         cfg
     };
@@ -145,7 +140,7 @@ fn main() {
            .unwrap_or_else(|| String::from("text/plain; charset=utf-8"))
     };
 
-    let put = client.put_object(PutObjectRequest {
+    let _put = client.put_object(PutObjectRequest {
         bucket,
         key: name.clone(),
         content_type: Some(mime),
@@ -171,7 +166,7 @@ fn highlight(cfg: &Config, mut input: Box<dyn BufRead + Send>) -> impl Iterator<
     use tinytemplate::TinyTemplate;
 
     let mut input_str = String::new();
-    input.read_to_string(&mut input_str);
+    input.read_to_string(&mut input_str).expect("Unable to read input");
 
     let mut syntax_set = SyntaxSet::load_defaults_newlines().into_builder();
     syntax_set.add(SyntaxDefinition::load_from_str(include_str!("../syntax/nix.sublime-syntax"), false, None)
@@ -200,23 +195,23 @@ fn highlight(cfg: &Config, mut input: Box<dyn BufRead + Send>) -> impl Iterator<
     let mut html = Vec::new();
     let mut formatted_line = String::new();
     let (_, bg) = start_highlighted_html_snippet(theme);
-    write!(&mut html, "<table><tr><td unselectable=\"on\"><pre class=linenumbers>");
-    for (i, line) in input_str.lines().enumerate() {
-        writeln!(&mut html, "<a href=\"#L{}\">{}</a>", i, i);
+    let _ = write!(&mut html, "<table><tr><td unselectable=\"on\"><pre class=linenumbers>");
+    for (i, _line) in input_str.lines().enumerate() {
+        let _ = writeln!(&mut html, "<a href=\"#L{}\">{}</a>", i, i);
     }
-    write!(&mut html, "</pre></td><td><pre class=code><code>");
+    let _ = write!(&mut html, "</pre></td><td><pre class=code><code>");
 
     for (i, line) in LinesWithEndings::from(&input_str).enumerate() {
         let regions = highlighter.highlight(line, &syntax_set);
         formatted_line.clear();
         append_highlighted_html_for_styled_line(&regions[..], IncludeBackground::IfDifferent(bg), &mut formatted_line);
         if formatted_line.ends_with('\n') { formatted_line.pop(); }
-        write!(&mut html, "<a id=\"L{}\"></a>{}", i, formatted_line);
+        let _ = write!(&mut html, "<a id=\"L{}\"></a>{}", i, formatted_line);
     }
-    write!(&mut html, "</code></pre></td></tr></table>");
+    let _ = write!(&mut html, "</code></pre></td></tr></table>");
 
     let mut template = TinyTemplate::new();
-    template.add_template("code", TEMPLATE);
+    template.add_template("code", TEMPLATE).expect("Template is faulty");
     template.add_formatter("raw", tinytemplate::format_unescaped);
 
     let rendered = template.render("code", &Template {