error: unused `Call` that must be used
 --> tests/ui/must_use.rs:4:5
  |
4 |     call("p.m", ());
  |     ^^^^^^^^^^^^^^^
  |
  = note: await the call to send it
note: the lint level is defined here
 --> tests/ui/must_use.rs:1:9
  |
1 | #![deny(unused_must_use)]
  |         ^^^^^^^^^^^^^^^
help: use `let _ = ...` to ignore the resulting value
  |
4 |     let _ = call("p.m", ());
  |     +++++++

error: unused `TypedCall` that must be used
 --> tests/ui/must_use.rs:5:5
  |
5 |     TypedCall::<()>::new(call("p.m", ()));
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: await the call to send it
help: use `let _ = ...` to ignore the resulting value
  |
5 |     let _ = TypedCall::<()>::new(call("p.m", ()));
  |     +++++++

error: unused `Lock` that must be used
 --> tests/ui/must_use.rs:6:5
  |
6 |     lock("/state/file");
  |     ^^^^^^^^^^^^^^^^^^^
  |
  = note: await the lock to acquire it
help: use `let _ = ...` to ignore the resulting value
  |
6 |     let _ = lock("/state/file");
  |     +++++++

error: unused `EndpointCall` that must be used
 --> tests/ui/must_use.rs:7:5
  |
7 |     endpoint.call::<()>("m", ());
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: await the endpoint call to send it
help: use `let _ = ...` to ignore the resulting value
  |
7 |     let _ = endpoint.call::<()>("m", ());
  |     +++++++

error: unused `Guard` that must be used
  --> tests/ui/must_use.rs:10:24
   |
10 | fn dropped(g: Guard) { guard(g); }
   |                        ^^^^^^^^
   |
   = note: bind the guard to hold the lock
help: use `let _ = ...` to ignore the resulting value
   |
10 | fn dropped(g: Guard) { let _ = guard(g); }
   |                        +++++++