chore(api): fix clippy errors (#375)

Needed for #374.

This configures clippy to ignore most of the generated code in
`console-api`.

console-api/src/async_ops.rs

@@ -1 +1,3 @@
+#![allow(warnings)]
+
 include!("generated/rs.tokio.console.async_ops.rs");

console-api/src/common.rs

@@ -1,7 +1,12 @@
 use std::fmt;
 use std::hash::{Hash, Hasher};
 
-include!("generated/rs.tokio.console.common.rs");
+pub use generated::*;
+
+mod generated {
+    #![allow(warnings)]
+    include!("generated/rs.tokio.console.common.rs");
+}
 
 impl From<tracing_core::Level> for metadata::Level {
     fn from(level: tracing_core::Level) -> Self {

console-api/src/instrument.rs

@@ -1 +1,3 @@
+#![allow(warnings)]
+
 include!("generated/rs.tokio.console.instrument.rs");

console-api/src/resources.rs

@@ -1 +1,3 @@
+#![allow(warnings)]
+
 include!("generated/rs.tokio.console.resources.rs");

console-api/src/tasks.rs

@@ -1 +1,3 @@
+#![allow(warnings)]
+
 include!("generated/rs.tokio.console.tasks.rs");

console-api/src/trace.rs

@@ -1 +1,3 @@
+#![allow(warnings)]
+
 include!("generated/rs.tokio.console.trace.rs");

console-subscriber/examples/barrier.rs

@@ -16,8 +16,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
                 let task_name = format!("task-{}", i);
                 handles.push(task::Builder::default().name(&task_name).spawn(async move {
                     tokio::time::sleep(Duration::from_secs(i)).await;
-                    let wait_result = c.wait().await;
-                    wait_result
+                    c.wait().await
                 }));
             }