The attribute `table_name` is currently unknown to the compiler and may have meaning added to it in the future

[raintears]

It keeps complaining about #[table_name = "users"] and I don't see what's wrong.

I have two tables in schema.rs

table! {
    school (id) {
        id -> Varchar,
        location -> Varchar,
    }
}

table! {
    users (email) {
        email -> Varchar,
        password -> Varchar,
    }
}

This is my user.rs everything looks fine to me

#[table_name = "users"]
#[derive(Serialize, Deserialize)]
pub struct User {
    pub email: String,
    pub password: String
}

It works for school.rs though

#[table_name = "schools"]
#[derive(Serialize, Deserialize)]
pub struct School {
    pub id: i32,
    pub location: String
}

[sgrif]

This is a known issue in Rust that is caused by #![feature(proc_macro)], there is nothing Diesel can do about it.

[sgrif]

Actually I lied, this is because you don't need any of the #[table_name] attributes you've applied. Just delete them.