Fix compiler warnings

src/bin/sccache-dist/token_check.rs

@@ -202,7 +202,7 @@ fn check_mozilla_profile(user: &str, required_groups: &[String], profile: &str)
 #[test]
 fn test_auth_verify_check_mozilla_profile() {
     // A successful response
-    let profile =  r#"{
+    let profile = r#"{
         "sub": "ad|Mozilla-LDAP|asayers",
         "https://sso.mozilla.com/claim/groups": [
             "everyone",

src/compiler/args.rs

@@ -956,7 +956,7 @@ mod tests {
             "-quxbar", // -quxbar is not -qux with a value of bar
             "-qux=value",
         ];
-        let iter = ArgsIter::new(args.into_iter().map(OsString::from), &ARGS[..]);
+        let iter = ArgsIter::new(args.iter().map(OsString::from), &ARGS[..]);
         let expected = vec![
             arg!(UnknownFlag("-nomatch")),
             arg!(WithValue("-foo", ArgData::Foo("value"), Separated)),
@@ -1029,8 +1029,7 @@ mod tests {
 
     #[test]
     fn test_arginfo_process_take_concat_arg_delim_doesnt_crash() {
-        let _ = take_arg!("-foo", OsString, Concatenated('='), Foo)
-            .process("-foo", || None);
+        let _ = take_arg!("-foo", OsString, Concatenated('='), Foo).process("-foo", || None);
     }
 
     #[cfg(debug_assertions)]

src/compiler/c.rs

@@ -36,7 +36,6 @@ use std::hash::Hash;
 use std::io;
 use std::path::{Path, PathBuf};
 use std::process;
-use which::which;
 
 use crate::errors::*;
 
@@ -551,7 +550,7 @@ impl pkg::ToolchainPackager for CToolchainPackager {
             if path.is_absolute() {
                 Some(path)
             } else {
-                which(path).ok()
+                which::which(path).ok()
             }
         };
 

src/compiler/msvc.rs

@@ -19,7 +19,7 @@ use crate::compiler::{
 };
 use crate::dist;
 use crate::mock_command::{CommandCreatorSync, RunCommand};
-use crate::util::{run_input_output, OsStrExt};
+use crate::util::run_input_output;
 use futures::future::Future;
 use futures_cpupool::CpuPool;
 use local_encoding::{Encoder, Encoding};