error[E0308]: mismatched types
  --> $DIR/async-block-control-flow-static-semantics.rs:21:58
   |
LL |   async fn return_targets_async_block_not_async_fn() -> u8 {
   |  __________________________________________________________^
LL | |
LL | |     let block = async {
LL | |         return 0u8;
...  |
LL | | }
   | |_^ expected `u8`, found `()`

error[E0271]: expected `{async block@$DIR/async-block-control-flow-static-semantics.rs:23:17: 23:22}` to be a future that resolves to `()`, but it resolves to `u8`
  --> $DIR/async-block-control-flow-static-semantics.rs:26:39
   |
LL |     let _: &dyn Future<Output = ()> = &block;
   |                                       ^^^^^^ expected `()`, found `u8`
   |
   = note: required for the cast from `&{async block@$DIR/async-block-control-flow-static-semantics.rs:23:17: 23:22}` to `&dyn Future<Output = ()>`

error[E0308]: mismatched types
  --> $DIR/async-block-control-flow-static-semantics.rs:12:43
   |
LL | fn return_targets_async_block_not_fn() -> u8 {
   |    ---------------------------------      ^^ expected `u8`, found `()`
   |    |
   |    implicitly returns `()` as its body has no tail or `return` expression

error[E0271]: expected `{async block@$DIR/async-block-control-flow-static-semantics.rs:14:17: 14:22}` to be a future that resolves to `()`, but it resolves to `u8`
  --> $DIR/async-block-control-flow-static-semantics.rs:17:39
   |
LL |     let _: &dyn Future<Output = ()> = &block;
   |                                       ^^^^^^ expected `()`, found `u8`
   |
   = note: required for the cast from `&{async block@$DIR/async-block-control-flow-static-semantics.rs:14:17: 14:22}` to `&dyn Future<Output = ()>`

error[E0267]: `break` inside `async` block
  --> $DIR/async-block-control-flow-static-semantics.rs:32:9
   |
LL |     async {
   |     ----- enclosing `async` block
LL |         break 0u8;
   |         ^^^^^^^^^ cannot `break` inside `async` block

error[E0267]: `break` inside `async` block
  --> $DIR/async-block-control-flow-static-semantics.rs:39:13
   |
LL |         async {
   |         ----- enclosing `async` block
LL |             break 0u8;
   |             ^^^^^^^^^ cannot `break` inside `async` block

error[E0308]: mismatched types
  --> $DIR/async-block-control-flow-static-semantics.rs:49:44
   |
LL | fn rethrow_targets_async_block_not_fn() -> Result<u8, MyErr> {
   |    ----------------------------------      ^^^^^^^^^^^^^^^^^ expected `Result<u8, MyErr>`, found `()`
   |    |
   |    implicitly returns `()` as its body has no tail or `return` expression
   |
   = note:   expected enum `Result<u8, MyErr>`
           found unit type `()`

error[E0308]: mismatched types
  --> $DIR/async-block-control-flow-static-semantics.rs:58:50
   |
LL | fn rethrow_targets_async_block_not_async_fn() -> Result<u8, MyErr> {
   |    ----------------------------------------      ^^^^^^^^^^^^^^^^^ expected `Result<u8, MyErr>`, found `()`
   |    |
   |    implicitly returns `()` as its body has no tail or `return` expression
   |
   = note:   expected enum `Result<u8, MyErr>`
           found unit type `()`

error: aborting due to 8 previous errors

Some errors have detailed explanations: E0267, E0271, E0308.
For more information about an error, try `rustc --explain E0267`.