rust/tests/ui/fmt/send-sync.stderr
Esteban Küber 6efddac288 Provide more context on derived obligation error primary label
Expand the primary span of E0277 when the immediate unmet bound is not what the user wrote:

```
error[E0277]: the trait bound `i32: Bar` is not satisfied
 --> f100.rs:6:6
  |
6 |     <i32 as Foo>::foo();
  |      ^^^ the trait `Bar` is not implemented for `i32`, which is required by `i32: Foo`
  |
help: this trait has no implementations, consider adding one
 --> f100.rs:2:1
  |
2 | trait Bar {}
  | ^^^^^^^^^
note: required for `i32` to implement `Foo`
 --> f100.rs:3:14
  |
3 | impl<T: Bar> Foo for T {}
  |         ---  ^^^     ^
  |         |
  |         unsatisfied trait bound introduced here
```

Fix #40120.
2024-01-30 21:28:18 +00:00

48 lines
2.3 KiB
Plaintext

error[E0277]: `core::fmt::rt::Opaque` cannot be shared between threads safely
--> $DIR/send-sync.rs:8:10
|
LL | send(format_args!("{:?}", c));
| ---- ^^^^^^^^^^^^^^^^^^^^^^^ `core::fmt::rt::Opaque` cannot be shared between threads safely
| |
| required by a bound introduced by this call
|
= help: within `[core::fmt::rt::Argument<'_>]`, the trait `Sync` is not implemented for `core::fmt::rt::Opaque`, which is required by `Arguments<'_>: Send`
= note: required because it appears within the type `&core::fmt::rt::Opaque`
note: required because it appears within the type `core::fmt::rt::Argument<'_>`
--> $SRC_DIR/core/src/fmt/rt.rs:LL:COL
= note: required because it appears within the type `[core::fmt::rt::Argument<'_>]`
= note: required for `&[core::fmt::rt::Argument<'_>]` to implement `Send`
note: required because it appears within the type `Arguments<'_>`
--> $SRC_DIR/core/src/fmt/mod.rs:LL:COL
note: required by a bound in `send`
--> $DIR/send-sync.rs:1:12
|
LL | fn send<T: Send>(_: T) {}
| ^^^^ required by this bound in `send`
error[E0277]: `core::fmt::rt::Opaque` cannot be shared between threads safely
--> $DIR/send-sync.rs:9:10
|
LL | sync(format_args!("{:?}", c));
| ---- ^^^^^^^^^^^^^^^^^^^^^^^ `core::fmt::rt::Opaque` cannot be shared between threads safely
| |
| required by a bound introduced by this call
|
= help: within `Arguments<'_>`, the trait `Sync` is not implemented for `core::fmt::rt::Opaque`, which is required by `Arguments<'_>: Sync`
= note: required because it appears within the type `&core::fmt::rt::Opaque`
note: required because it appears within the type `core::fmt::rt::Argument<'_>`
--> $SRC_DIR/core/src/fmt/rt.rs:LL:COL
= note: required because it appears within the type `[core::fmt::rt::Argument<'_>]`
= note: required because it appears within the type `&[core::fmt::rt::Argument<'_>]`
note: required because it appears within the type `Arguments<'_>`
--> $SRC_DIR/core/src/fmt/mod.rs:LL:COL
note: required by a bound in `sync`
--> $DIR/send-sync.rs:2:12
|
LL | fn sync<T: Sync>(_: T) {}
| ^^^^ required by this bound in `sync`
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.