NonNull<u8> cannot be shared between threads safely

[thexeromin]

I am trying to pass diesel db connection in rocket state using mange method but not working.
Here is the error

Checking server v0.1.0 (/home/floki/work/portfolio/fether-note/server)
error[E0277]: `NonNull<mysqlclient_sys::st_mysql>` cannot be shared between threads safely
   --> src/main.rs:15:17
    |
15  |         .manage(connection)
    |          ------ ^^^^^^^^^^ `NonNull<mysqlclient_sys::st_mysql>` cannot be shared between threads safely
    |          |
    |          required by a bound introduced by this call
    |
    = help: within `MysqlRepo`, the trait `Sync` is not implemented for `NonNull<mysqlclient_sys::st_mysql>`
    = note: required because it appears within the type `RawConnection`
    = note: required because it appears within the type `MysqlConnection`
note: required because it appears within the type `MysqlRepo`
   --> src/repository/mysql_repo.rs:9:12
    |
9   | pub struct MysqlRepo {
    |            ^^^^^^^^^
note: required by a bound in `Rocket::<Build>::manage`
   --> /home/floki/.cargo/registry/src/github.com-1ecc6299db9ec823/rocket-0.5.0-rc.3/src/rocket.rs:433:25
    |
433 |         where T: Send + Sync + 'static
    |                         ^^^^ required by this bound in `Rocket::<Build>::manage`

error[E0277]: `NonNull<mysqlclient_sys::st_mysql_stmt>` cannot be shared between threads safely
   --> src/main.rs:15:17
    |
15  |         .manage(connection)
    |          ------ ^^^^^^^^^^ `NonNull<mysqlclient_sys::st_mysql_stmt>` cannot be shared between threads safely
    |          |
    |          required by a bound introduced by this call
    |
    = help: within `(connection::statement_cache::StatementCacheKey<Mysql>, mysql::connection::stmt::Statement)`, the trait `Sync` is not implemented for `NonNull<mysqlclient_sys::st_mysql_stmt>`
    = note: required because it appears within the type `Statement`
    = note: required because it appears within the type `(StatementCacheKey<Mysql>, Statement)`
    = note: required for `hashbrown::raw::RawTable<(connection::statement_cache::StatementCacheKey<Mysql>, mysql::connection::stmt::Statement)>` to implement `Sync`
    = note: required because it appears within the type `HashMap<StatementCacheKey<Mysql>, Statement, RandomState>`
    = note: required because it appears within the type `HashMap<StatementCacheKey<Mysql>, Statement>`
    = note: required because it appears within the type `StatementCache<Mysql, Statement>`
    = note: required because it appears within the type `MysqlConnection`
note: required because it appears within the type `MysqlRepo`
   --> src/repository/mysql_repo.rs:9:12
    |
9   | pub struct MysqlRepo {
    |            ^^^^^^^^^
note: required by a bound in `Rocket::<Build>::manage`
   --> /home/floki/.cargo/registry/src/github.com-1ecc6299db9ec823/rocket-0.5.0-rc.3/src/rocket.rs:433:25
    |
433 |         where T: Send + Sync + 'static
    |                         ^^^^ required by this bound in `Rocket::<Build>::manage`

error[E0277]: `NonNull<u8>` cannot be shared between threads safely
   --> src/main.rs:15:17
    |
15  |         .manage(connection)
    |          ------ ^^^^^^^^^^ `NonNull<u8>` cannot be shared between threads safely
    |          |
    |          required by a bound introduced by this call
    |
    = help: within `mysql::connection::bind::BindData`, the trait `Sync` is not implemented for `NonNull<u8>`
    = note: required because it appears within the type `Option<NonNull<u8>>`
    = note: required because it appears within the type `BindData`
    = note: required for `Unique<mysql::connection::bind::BindData>` to implement `Sync`
    = note: required because it appears within the type `RawVec<BindData>`
    = note: required because it appears within the type `Vec<BindData>`
    = note: required because it appears within the type `Binds`
    = note: required because it appears within the type `PreparedStatementBinds`
    = note: required because it appears within the type `Option<PreparedStatementBinds>`
    = note: required because it appears within the type `Statement`
    = note: required because it appears within the type `(StatementCacheKey<Mysql>, Statement)`
    = note: required for `hashbrown::raw::RawTable<(connection::statement_cache::StatementCacheKey<Mysql>, mysql::connection::stmt::Statement)>` to implement `Sync`
    = note: required because it appears within the type `HashMap<StatementCacheKey<Mysql>, Statement, RandomState>`
    = note: required because it appears within the type `HashMap<StatementCacheKey<Mysql>, Statement>`
    = note: required because it appears within the type `StatementCache<Mysql, Statement>`
    = note: required because it appears within the type `MysqlConnection`
note: required because it appears within the type `MysqlRepo`
   --> src/repository/mysql_repo.rs:9:12
    |
9   | pub struct MysqlRepo {
    |            ^^^^^^^^^
note: required by a bound in `Rocket::<Build>::manage`
   --> /home/floki/.cargo/registry/src/github.com-1ecc6299db9ec823/rocket-0.5.0-rc.3/src/rocket.rs:433:25
    |
433 |         where T: Send + Sync + 'static
    |                         ^^^^ required by this bound in `Rocket::<Build>::manage`

For more information about this error, try `rustc --explain E0277`.
error: could not compile `server` due to 3 previous errors

[SergioBenitez]

It would be pretty bad for many, many reasons if you did this. You should use rocket_sync_db_pools.