Async Diesel with Vec error

diesel_async_with_struct.rs

use diesel_async::RunQueryDsl;

struct A;
impl A {
    fn first() {
        print!("hi");
    }
}

fn main() {
    A.first();
}

// error[E0277]: the trait bound `A: diesel::query_source::Table` is not satisfied
//   --> src/main.rs:11:7
//    |
// 11 |     A.first();
//    |       ^^^^^ the trait `diesel::query_source::Table` is not implemented for `A`
//    |
//    = help: the following other types implement trait `diesel::query_dsl::limit_dsl::LimitDsl`:
//              diesel::query_builder::select_statement::boxed::BoxedSelectStatement<'a, ST, QS, DB, GB>
//              diesel::query_builder::select_statement::SelectStatement<F, S, D, W, O, diesel::query_builder::limit_offset_clause::Lim
// itOffsetClause<L, Of>, G, H, LC>
//              diesel::query_source::aliasing::alias::Alias<S>
//    = note: required for `A` to implement `diesel::query_dsl::limit_dsl::LimitDsl`
// 
// error[E0277]: the trait bound `A: diesel::query_builder::Query` is not satisfied
//   --> src/main.rs:11:7
//    |
// 11 |     A.first();
//    |       ^^^^^ the trait `diesel::query_builder::Query` is not implemented for `A`
//    |
//    = help: the following other types implement trait `diesel::query_builder::Query`:
//              diesel::query_builder::delete_statement::DeleteStatement<T, U, diesel::query_builder::returning_clause::ReturningClause
// <Ret>>
//              diesel::query_builder::sql_query::BoxedSqlQuery<'_, DB, Q>
//              diesel::expression::sql_literal::SqlLiteral<ST, T>
//              diesel::expression::sql_literal::UncheckedBind<Q, Value>
//              diesel::query_builder::combination_clause::CombinationClause<Combinator, Rule, Source, Rhs>
//              diesel::query_builder::insert_statement::InsertStatement<T, U, Op, diesel::query_builder::returning_clause::ReturningCl
// ause<Ret>>
//              diesel::query_builder::select_statement::boxed::BoxedSelectStatement<'a, ST, QS, DB, GB>
//              diesel::query_builder::select_statement::SelectStatement<F, S, D, W, O, LOf, G, H, LC>
//            and 6 others
//    = note: required for `A` to implement `diesel::query_builder::AsQuery`
//    = note: required for `A` to implement `diesel::query_dsl::limit_dsl::LimitDsl`
// 
// error[E0275]: overflow evaluating the requirement `<A as diesel::query_dsl::limit_dsl::LimitDsl>::Output == _`
//   --> src/main.rs:11:7
//    |
// 11 |     A.first();
//    |       ^^^^^

diesel_async_with_vec.rs

use diesel_async::RunQueryDsl;

fn main() {
    vec![1, 2, 3, 4].first();
}

// error[E0277]: the trait bound `Vec<{integer}>: diesel::query_source::Table` is not satisfied
//  --> src/main.rs:4:22
//   |
// 4 |     vec![1, 2, 3, 4].first();
//   |                      ^^^^^ the trait `diesel::query_source::Table` is not implemented for `Vec<{integer}>`
//   |
//   = help: the following other types implement trait `diesel::query_dsl::limit_dsl::LimitDsl`:
//             diesel::query_builder::select_statement::boxed::BoxedSelectStatement<'a, ST, QS, DB, GB>
//             diesel::query_builder::select_statement::SelectStatement<F, S, D, W, O, diesel::query_builder::limit_offset_clause::LimitOffsetClause<L, Of>, G, H, LC>
//             diesel::query_source::aliasing::alias::Alias<S>
//   = note: required for `Vec<{integer}>` to implement `diesel::query_dsl::limit_dsl::LimitDsl`
// 
// error[E0277]: the trait bound `Vec<{integer}>: diesel::query_builder::Query` is not satisfied
//  --> src/main.rs:4:22
//   |
// 4 |     vec![1, 2, 3, 4].first();
//   |                      ^^^^^ the trait `diesel::query_builder::Query` is not implemented for `Vec<{integer}>`
//   |
//   = help: the following other types implement trait `diesel::query_builder::Query`:
//             diesel::query_builder::delete_statement::DeleteStatement<T, U, diesel::query_builder::returning_clause::ReturningClause<Ret>>
//             diesel::query_builder::sql_query::BoxedSqlQuery<'_, DB, Q>
//             diesel::expression::sql_literal::SqlLiteral<ST, T>
//             diesel::expression::sql_literal::UncheckedBind<Q, Value>
//             diesel::query_builder::combination_clause::CombinationClause<Combinator, Rule, Source, Rhs>
//             diesel::query_builder::insert_statement::InsertStatement<T, U, Op, diesel::query_builder::returning_clause::ReturningClause<Ret>>
//             diesel::query_builder::select_statement::boxed::BoxedSelectStatement<'a, ST, QS, DB, GB>
//             diesel::query_builder::select_statement::SelectStatement<F, S, D, W, O, LOf, G, H, LC>
//           and 6 others
//   = note: required for `Vec<{integer}>` to implement `diesel::query_builder::AsQuery`
//   = note: required for `Vec<{integer}>` to implement `diesel::query_dsl::limit_dsl::LimitDsl`
// 
// error[E0275]: overflow evaluating the requirement `<Vec<{integer}> as diesel::query_dsl::limit_dsl::LimitDsl>::Output == _`
//  --> src/main.rs:4:22
//   |
// 4 |     vec![1, 2, 3, 4].first();
//   |                      ^^^^^
// 
// Some errors have detailed explanations: E0275, E0277.
// For more information about an error, try `rustc --explain E0275`.

using_diesel.rs

use diesel::RunQueryDsl;

fn main() {
    let x = vec![1, 2, 3, 4];
    
    println!("Hello {:?}", x.first());
}
// Hello Some(1)

Adding a comment here that this gist is linked to the issue tracked here weiznich/diesel_async#142. Will update gist comment when this is fixed