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6efddac288
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
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6 | <i32 as Foo>::foo();
| ^^^ the trait `Bar` is not implemented for `i32`, which is required by `i32: Foo`
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help: this trait has no implementations, consider adding one
--> f100.rs:2:1
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2 | trait Bar {}
| ^^^^^^^^^
note: required for `i32` to implement `Foo`
--> f100.rs:3:14
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3 | impl<T: Bar> Foo for T {}
| --- ^^^ ^
| |
| unsatisfied trait bound introduced here
```
Fix #40120.
23 lines
1.0 KiB
Plaintext
23 lines
1.0 KiB
Plaintext
error[E0277]: `Rc<()>` cannot be sent between threads safely
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--> $DIR/issue-21763.rs:11:11
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LL | foo::<HashMap<Rc<()>, Rc<()>>>();
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| ^^^^^^^^^^^^^^^^^^^^^^^ `Rc<()>` cannot be sent between threads safely
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= help: within `(Rc<()>, Rc<()>)`, the trait `Send` is not implemented for `Rc<()>`, which is required by `HashMap<Rc<()>, Rc<()>>: Send`
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= note: required because it appears within the type `(Rc<()>, Rc<()>)`
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= note: required for `hashbrown::raw::RawTable<(Rc<()>, Rc<()>)>` to implement `Send`
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note: required because it appears within the type `hashbrown::map::HashMap<Rc<()>, Rc<()>, RandomState>`
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--> $HASHBROWN_SRC_LOCATION
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note: required because it appears within the type `HashMap<Rc<()>, Rc<()>>`
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--> $SRC_DIR/std/src/collections/hash/map.rs:LL:COL
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note: required by a bound in `foo`
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--> $DIR/issue-21763.rs:8:11
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LL | fn foo<T: Send>() {}
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| ^^^^ required by this bound in `foo`
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0277`.
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