Here was the error.
```
❯ cargo clippy
Checking veilid-tools v0.2.5 (~/Developer/veilid/veilid-tools)
error: this `MutexGuard` is held across an `await` point
--> veilid-tools/src/tests/common/test_host_interface.rs:269:17
|
269 | let mut tick = tick_1.lock();
| ^^^^^^^^
|
= help: consider using an async-aware `Mutex` type or ensuring the `MutexGuard` is dropped before calling await
note: these are all the `await` points this lock is held through
--> veilid-tools/src/tests/common/test_host_interface.rs:271:25
|
271 | sleep(1000).await;
| ^^^^^
...
274 | sleep(1000).await;
| ^^^^^
...
277 | sleep(1000).await;
| ^^^^^
...
280 | sleep(1000).await;
| ^^^^^
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#await_holding_lock
note: the lint level is defined here
--> veilid-tools/src/lib.rs:23:9
|
23 | #![deny(clippy::all)]
| ^^^^^^^^^^^
= note: `#[deny(clippy::await_holding_lock)]` implied by `#[deny(clippy::all)]`
error: could not compile `veilid-tools` (lib) due to previous error
```
