Auto merge of #645 - Mark-Simulacrum:clippy, r=Mark-Simulacrum

Fix clippy lints

Author: bors

src/config.rs

@@ -193,7 +193,7 @@ impl Config {
 
         let mut any_missing = false;
         for crate_name in self.crates.keys() {
-            if !list_of_crates.contains(&*crate_name) {
+            if !list_of_crates.contains(crate_name) {
                 error!(
                     "check-config failed: crate `{}` is not available.",
                     crate_name
@@ -225,7 +225,7 @@ impl Config {
 
         let mut any_missing = false;
         for repo_name in self.github_repos.keys() {
-            if !list_of_crates.contains(&*repo_name) {
+            if !list_of_crates.contains(repo_name) {
                 error!(
                     "check-config failed: GitHub repo `{}` is missing",
                     repo_name

src/runner/test.rs

@@ -99,7 +99,7 @@ fn run_cargo<DB: WriteResults>(
         rustflags.push_str(tc_rustflags);
     }
 
-    let rustflags_env = if let Some(&"doc") = args.get(0) {
+    let rustflags_env = if let Some(&"doc") = args.first() {
         "RUSTDOCFLAGS"
     } else {
         "RUSTFLAGS"