Why objects of type "query_db::{closure#0}::Record" are considered having different types?

[powerseed]

I have a match block as follows:

    let messages_option = match time_range {
        TimeRange {before: Some(before), after: Some(after)} => {
            sqlx::query!("SELECT * FROM messages WHERE timestamp BETWEEN ? AND ?", after, before)
                .fetch_all(&mut conn)
                .await
        },
        TimeRange {before: None, after: Some(after)} => {
            sqlx::query!("SELECT * FROM messages WHERE timestamp > ?", after)
                .fetch_all(&mut conn)
                .await
        },
        TimeRange {before: Some(before), after: None} => {
            sqlx::query!("SELECT * FROM messages WHERE timestamp < ?", before)
                .fetch_all(&mut conn)
                .await
        },
        TimeRange {before: None, after: None} => {
            sqlx::query!("SELECT * FROM messages")
                .fetch_all(&mut conn)
                .await
        }
    };

When building, it gives the following error:

135 |       let messages_option = match time_range {
    |                             ---------------- `match` arms have incompatible types
136 |           TimeRange {before: Some(before), after: Some(after)} => {
137 | /             sqlx::query!("SELECT * FROM messages WHERE timestamp BETWEEN ? AND ?", after, before)
138 | |                 .fetch_all(&mut conn)
139 | |                 .await
    | |______________________- this is found to be of type `Result<Vec<query_db::{closure#0}::Record>, sqlx::Error>`
...
142 | /             sqlx::query!("SELECT * FROM messages WHERE timestamp > ?", after)
143 | |                 .fetch_all(&mut conn)
144 | |                 .await
    | |______________________^ expected `query_db::{closure#0}::Record`, found a different `query_db::{closure#0}::Record`
    |
    = note: expected enum `Result<Vec<query_db::{closure#0}::Record>, _>` (`query_db::{closure#0}::Record`)
               found enum `Result<Vec<query_db::{closure#0}::Record>, _>` (`query_db::{closure#0}::Record`)

It says "expected query_db::{closure#0}::Record, found a different query_db::{closure#0}::Record", but the types look exactly the same, then why the incompatibility?

Please help. Thanks!

[powerseed]

Anyone could help? This error message is meaningless because it doesn't point out the problem.
There are a lot of places like this in this crate, where error messages don't help much and users are left high and dry.