Enable lint using rustflags hack

.cargo/config.toml

@@ -0,0 +1,6 @@
+[build]
+# Workaround to enable this lint for all packages in the workspace
+#
+# Once https://github.com/rust-lang/cargo/issues/12115 makes it to our
+# toolchain, we'll be able to put this in the `Cargo.toml` manifest instead.
+rustflags = ["-Wclippy::unused-async"]

Cargo.toml

@@ -124,4 +124,3 @@ repair-client = { path = "./repair-client" }
 
 [profile.dev]
 panic = 'abort'
-

downstairs/src/lib.rs

@@ -1,7 +1,6 @@
 // Copyright 2023 Oxide Computer Company
 #![cfg_attr(usdt_need_asm, feature(asm))]
 #![cfg_attr(all(target_os = "macos", usdt_need_asm_sym), feature(asm_sym))]
-#![warn(clippy::unused_async)]
 
 use futures::executor;
 use futures::lock::{Mutex, MutexGuard};

integration_tests/src/lib.rs

@@ -1,5 +1,4 @@
 // Copyright 2023 Oxide Computer Company
-#![warn(clippy::unused_async)]
 
 #[cfg(test)]
 mod test {

pantry/src/lib.rs

@@ -1,6 +1,5 @@
 // Copyright 2022 Oxide Computer Company
 
-#![warn(clippy::unused_async)]
 use std::sync::Arc;
 
 use anyhow::Result;

upstairs/src/lib.rs

@@ -2,7 +2,6 @@
 #![cfg_attr(usdt_need_asm, feature(asm))]
 #![cfg_attr(all(target_os = "macos", usdt_need_asm_sym), feature(asm_sym))]
 #![allow(clippy::mutex_atomic)]
-#![warn(clippy::unused_async)]
 
 use std::clone::Clone;
 use std::collections::{BTreeSet, HashMap, HashSet, VecDeque};