error： cannot be sent between threads safely

[jinkaz]

here is the code:
main function :
rocket::build()
.attach(AdHoc::try_on_ignite("NACOSREGISTER", run_regist))
.attach(AdHoc::try_on_ignite("DBREGISTER", init_db))

the first fairing function:
pub struct ServiceManager {
pub(super) config_service: Mutex<Arc>,
}
pub async fn run_regist(rocket: Rocket) -> fairing::Result {
/// ...
Ok(rocket.manage(ServiceManager {
config_service: Mutex::new(Arc::new(config_service)),
}))
///...
}

the second fairing function:
pub async fn init_db(rocket: Rocket)->fairing::Result {
let sm=rocket.state::().unwrap();
///...
}

the error info:
error[E0277]: (dyn ConfigService + 'static) cannot be shared between threads safely
--> src\db\db_fairings.rs:41:27
|
41 | let sm=rocket.state::().unwrap();
| ^^^^^^^^^^^^^^ (dyn ConfigService + 'static) cannot be shared between threads safely
|
= help: the trait Sync is not implemented for (dyn ConfigService + 'static)
= note: required for Arc<(dyn ConfigService + 'static)> to implement std::marker::Send
= note: 1 redundant requirement hidden
= note: required for std::sync::Mutex<Arc<(dyn ConfigService + 'static)>> to implement std::marker::Send
note: required because it appears within the type ServiceManager
--> src\db\sm_fairings.rs:14:12
|
14 | pub struct ServiceManager {
| ^^^^^^^^^^^^^^
note: required by a bound in Rocket::<P>::state

|

821 | pub fn state<T: Send + Sync + 'static>(&self) -> Option<&T> {
| ^^^^ required by this bound in Rocket::<P>::state

i don't know how to resolve that. i need some help.