Revision control
Copy as Markdown
Other Tools
error[E0308]: mismatched types
--> tests/ui/async_instrument.rs:5:5
|
5 | ""
| ^^ expected `()`, found `&str`
|
note: return type inferred to be `()` here
--> tests/ui/async_instrument.rs:4:10
|
4 | async fn unit() {
| ^^^^
error[E0308]: mismatched types
--> tests/ui/async_instrument.rs:10:5
|
10 | ""
| ^^- help: try using a conversion method: `.to_string()`
| |
| expected `String`, found `&str`
|
note: return type inferred to be `String` here
--> tests/ui/async_instrument.rs:9:31
|
9 | async fn simple_mismatch() -> String {
| ^^^^^^
error[E0277]: `(&str,)` doesn't implement `std::fmt::Display`
--> tests/ui/async_instrument.rs:14:1
|
14 | #[tracing::instrument]
| ^^^^^^^^^^^^^^^^^^^^^^ `(&str,)` cannot be formatted with the default formatter
|
= help: the trait `std::fmt::Display` is not implemented for `(&str,)`
= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
= note: this error originates in the attribute macro `tracing::instrument` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: `(&str,)` doesn't implement `std::fmt::Display`
--> tests/ui/async_instrument.rs:15:34
|
15 | async fn opaque_unsatisfied() -> impl std::fmt::Display {
| ^^^^^^^^^^^^^^^^^^^^^^ `(&str,)` cannot be formatted with the default formatter
|
= help: the trait `std::fmt::Display` is not implemented for `(&str,)`
= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
error[E0308]: mismatched types
--> tests/ui/async_instrument.rs:23:5
|
23 | ""
| ^^ expected `Wrapper<_>`, found `&str`
|
= note: expected struct `Wrapper<_>`
found reference `&'static str`
note: return type inferred to be `Wrapper<_>` here
--> tests/ui/async_instrument.rs:22:36
|
22 | async fn mismatch_with_opaque() -> Wrapper<impl std::fmt::Display> {
| ^^^^^^^
help: try wrapping the expression in `Wrapper`
|
23 | Wrapper("")
| ++++++++ +
error[E0308]: mismatched types
--> tests/ui/async_instrument.rs:29:16
|
29 | return "";
| ^^ expected `()`, found `&str`
|
note: return type inferred to be `()` here
--> tests/ui/async_instrument.rs:27:10
|
27 | async fn early_return_unit() {
| ^^^^^^^^^^^^^^^^^
error[E0308]: mismatched types
--> tests/ui/async_instrument.rs:36:16
|
36 | return "";
| ^^- help: try using a conversion method: `.to_string()`
| |
| expected `String`, found `&str`
|
note: return type inferred to be `String` here
--> tests/ui/async_instrument.rs:34:28
|
34 | async fn early_return() -> String {
| ^^^^^^
error[E0308]: mismatched types
--> tests/ui/async_instrument.rs:42:35
|
42 | async fn extra_semicolon() -> i32 {
| ___________________________________^
43 | | 1;
| | - help: remove this semicolon to return this value
44 | | }
| |_^ expected `i32`, found `()`