cargo test fails

[kjeremy]

Running cargo test at the root of the repo fails:

error[E0433]: failed to resolve: could not find roscpp_tutorials in rosrust_msg
--> examples/examples/service_node.rs:13:41
|
13 | rosrust::service::<rosrust_msg::roscpp_tutorials::TwoInts, _>("add_two_ints", move |req| {
| ^^^^^^^^^^^^^^^^ could not find roscpp_tutorials in rosrust_msg

error[E0433]: failed to resolve: could not find roscpp_tutorials in rosrust_msg
--> examples/examples/service_node.rs:20:29
|
20 | Ok(rosrust_msg::roscpp_tutorials::TwoIntsRes { sum })
| ^^^^^^^^^^^^^^^^ could not find roscpp_tutorials in rosrust_msg