macros_type_mismatch.stderr

error[E0308]: mismatched types
 --> $DIR/macros_type_mismatch.rs:3:1
  |
3 | #[tokio::main]
  | ^^^^^^^^^^^^^^ expected `()`, found enum `Result`
4 | async fn missing_semicolon_or_return_type() {
  |                                             - help: a return type might be missing here: `-> _`
  |
  = note: expected unit type `()`
                  found enum `Result<(), _>`
  = note: this error originates in the attribute macro `tokio::main` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0308]: mismatched types
 --> $DIR/macros_type_mismatch.rs:8:1
  |
8 | #[tokio::main]
  | ^^^^^^^^^^^^^^ expected `()`, found enum `Result`
9 | async fn missing_return_type() {
  |                                - help: a return type might be missing here: `-> _`
  |
  = note: expected unit type `()`
                  found enum `Result<(), _>`
  = note: this error originates in the attribute macro `tokio::main` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0308]: mismatched types
  --> $DIR/macros_type_mismatch.rs:13:1
   |
13 | #[tokio::main]
   | ^^^^^^^^^^^^^^ expected enum `Result`, found `()`
14 | async fn extra_semicolon() -> Result<(), ()> {
   |                               -------------- expected `Result<(), ()>` because of return type
   |
   = note:   expected enum `Result<(), ()>`
           found unit type `()`
   = note: this error originates in the attribute macro `tokio::main` (in Nightly builds, run with -Z macro-backtrace for more info)
help: try wrapping the expression in a variant of `Result`
   |
13 | Ok(#[tokio::main])
   | +++              +
13 | Err(#[tokio::main])
   | ++++              +

error[E0308]: mismatched types
  --> $DIR/macros_type_mismatch.rs:29:1
   |
29 | #[tokio::main]
   | ^^^^^^^^^^^^^^ expected `()`, found integer
30 | async fn issue_4635() {
   |                       - help: try adding a return type: `-> i32`
   |
   = note: this error originates in the attribute macro `tokio::main` (in Nightly builds, run with -Z macro-backtrace for more info)