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092ecca5b9
```
error[E0277]: the trait bound `{gen block@$DIR/gen_block_is_coro.rs:7:5: 7:8}: Coroutine` is not satisfied
--> $DIR/gen_block_is_coro.rs:6:13
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LL | fn foo() -> impl Coroutine<Yield = u32, Return = ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Coroutine` is not implemented for `{gen block@$DIR/gen_block_is_coro.rs:7:5: 7:8}`
LL | gen { yield 42 }
| ---------------- return type was inferred to be `{gen block@$DIR/gen_block_is_coro.rs:7:5: 7:8}` here
```
The secondary span label is new.
27 lines
723 B
Plaintext
27 lines
723 B
Plaintext
error[E0277]: `()` is not a future
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--> $DIR/async-error-span.rs:7:20
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LL | fn get_future() -> impl Future<Output = ()> {
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| ^^^^^^^^^^^^^^^^^^^^^^^^ `()` is not a future
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LL |
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LL | panic!()
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| -------- return type was inferred to be `_` here
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= help: the trait `Future` is not implemented for `()`
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error[E0282]: type annotations needed
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--> $DIR/async-error-span.rs:13:9
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LL | let a;
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| ^
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help: consider giving `a` an explicit type
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LL | let a: /* Type */;
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| ++++++++++++
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error: aborting due to 2 previous errors
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Some errors have detailed explanations: E0277, E0282.
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For more information about an error, try `rustc --explain E0277`.
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