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A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lintsT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.
Description
Code
struct S;
#[diagnostic::on_unimplemented(
message = "unable to generate binding for function",
label = "Some label",
note = "note 1",
note = "note 2",
note = "note 3",
)]
trait Failure7<'a> {}
impl<'a> Clone for S where S: Failure7<'a> {
fn clone(&self) -> Self {
unreachable!()
}
}
fn main() {
fn take_clone(_: impl Clone) {}
take_clone(S);
}
Current output
error[E0277]: the trait bound `S: Clone` is not satisfied
--> src/main.rs:20:16
|
20 | take_clone(S);
| ---------- ^ the trait `Clone` is not implemented for `S`
| |
| required by a bound introduced by this call
|
note: required for `S` to implement `Clone`
--> src/main.rs:12:10
|
12 | impl<'a> Clone for S where S: Failure7<'a> {
| ^^^^^ ^ ------------ unsatisfied trait bound introduced here
note: required by a bound in `take_clone`
--> src/main.rs:19:27
|
19 | fn take_clone(_: impl Clone) {}
| ^^^^^ required by this bound in `take_clone`
help: consider borrowing here
|
20 | take_clone(&S);
| +
For more information about this error, try `rustc --explain E0277`.
error: could not compile `playground` (bin "playground") due to 1 previous error
Rationale and extra context
The output should include the provided label
and note
values, as it does when depending on the trait bound directly.
Rust Version
1.83.0
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A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lintsT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.