diff --git a/bin/run_docker_test b/bin/run_docker_test
index 33b51fba..80e35fa2 100755
--- a/bin/run_docker_test
+++ b/bin/run_docker_test
@@ -80,7 +80,7 @@ def main():
     inspect = [
         'docker', 'inspect',
         '-f', "{{.State.ExitCode}}",
-        "{}_{}_1".format(
+        "{}_{}-1".format(
             isolation_id,
             test_service)
     ]
@@ -97,7 +97,7 @@ def main():
 
     for service in compose_dict['services']:
         scrape += [
-            '--filter', 'name={}_{}_1'.format(isolation_id, service),
+            '--filter', 'name={}_{}-1'.format(isolation_id, service),
         ]
 
     timer = Timer(args.timeout)
@@ -310,7 +310,7 @@ def _validate_compose_dict(compose_dict, test_service, compose_file):
 def _check_for_existing_containers(compose_file, compose_dict, isolation_id):
     containers = _get_existing_containers()
     for service in compose_dict['services'].keys():
-        container_name_to_create = "{}_{}_1".format(isolation_id, service)
+        container_name_to_create = "{}_{}-1".format(isolation_id, service)
         for existing_container_name in containers:
             if container_name_to_create == existing_container_name:
                 raise RunDockerTestError(
diff --git a/src/engine.rs b/src/engine.rs
index ff8716c2..309c3b4e 100644
--- a/src/engine.rs
+++ b/src/engine.rs
@@ -57,7 +57,7 @@ impl DevmodeService {
 
     #[allow(clippy::ptr_arg)]
     fn get_block(&mut self, block_id: &BlockId) -> Block {
-        debug!("Getting block {}", to_hex(&block_id));
+        debug!("Getting block {}", to_hex(block_id));
         self.service
             .get_blocks(vec![block_id.clone()])
             .expect("Failed to get block")
@@ -164,7 +164,7 @@ impl DevmodeService {
     #[allow(clippy::ptr_arg)]
     fn send_block_ack(&mut self, sender_id: &PeerId, block_id: BlockId) {
         self.service
-            .send_to(&sender_id, "ack", block_id)
+            .send_to(sender_id, "ack", block_id)
             .expect("Failed to send block ack");
     }
 
diff --git a/src/main.rs b/src/main.rs
index f656f56b..a246fdfe 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -53,13 +53,12 @@ fn main() {
 
     let no_forks: bool = matches.is_present("no_forks");
 
-    let console_log_level;
-    match matches.occurrences_of("verbose") {
-        0 => console_log_level = LogLevelFilter::Warn,
-        1 => console_log_level = LogLevelFilter::Info,
-        2 => console_log_level = LogLevelFilter::Debug,
-        _ => console_log_level = LogLevelFilter::Trace,
-    }
+    let console_log_level = match matches.occurrences_of("verbose") {
+        0 => LogLevelFilter::Warn,
+        1 => LogLevelFilter::Info,
+        2 => LogLevelFilter::Debug,
+        _ => LogLevelFilter::Trace,
+    };
 
     let stdout = ConsoleAppender::builder()
         .encoder(Box::new(PatternEncoder::new(