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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.
139 lines
5.9 KiB
Plaintext
139 lines
5.9 KiB
Plaintext
error[E0277]: the trait bound `Vec<u32>: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:36:23: 36:30}`
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--> $DIR/clone-impl.rs:42:5
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LL | let gen_clone_0 = move || {
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| ------- within this `{coroutine@$DIR/clone-impl.rs:36:23: 36:30}`
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...
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LL | check_copy(&gen_clone_0);
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| ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:36:23: 36:30}`, the trait `Copy` is not implemented for `Vec<u32>`, which is required by `{coroutine@$DIR/clone-impl.rs:36:23: 36:30}: Copy`
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note: captured value does not implement `Copy`
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--> $DIR/clone-impl.rs:40:14
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LL | drop(clonable_0);
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| ^^^^^^^^^^ has type `Vec<u32>` which does not implement `Copy`
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note: required by a bound in `check_copy`
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--> $DIR/clone-impl.rs:72:18
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LL | fn check_copy<T: Copy>(_x: &T) {}
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| ^^^^ required by this bound in `check_copy`
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error[E0277]: the trait bound `Vec<char>: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:36:23: 36:30}`
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--> $DIR/clone-impl.rs:42:5
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LL | let gen_clone_0 = move || {
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| ------- within this `{coroutine@$DIR/clone-impl.rs:36:23: 36:30}`
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...
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LL | check_copy(&gen_clone_0);
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| ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:36:23: 36:30}`, the trait `Copy` is not implemented for `Vec<char>`, which is required by `{coroutine@$DIR/clone-impl.rs:36:23: 36:30}: Copy`
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note: coroutine does not implement `Copy` as this value is used across a yield
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--> $DIR/clone-impl.rs:38:9
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LL | let v = vec!['a'];
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| - has type `Vec<char>` which does not implement `Copy`
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LL | yield;
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| ^^^^^ yield occurs here, with `v` maybe used later
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note: required by a bound in `check_copy`
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--> $DIR/clone-impl.rs:72:18
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LL | fn check_copy<T: Copy>(_x: &T) {}
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| ^^^^ required by this bound in `check_copy`
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error[E0277]: the trait bound `Vec<u32>: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:46:23: 46:30}`
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--> $DIR/clone-impl.rs:58:5
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LL | let gen_clone_1 = move || {
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| ------- within this `{coroutine@$DIR/clone-impl.rs:46:23: 46:30}`
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...
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LL | check_copy(&gen_clone_1);
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| ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:46:23: 46:30}`, the trait `Copy` is not implemented for `Vec<u32>`, which is required by `{coroutine@$DIR/clone-impl.rs:46:23: 46:30}: Copy`
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note: captured value does not implement `Copy`
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--> $DIR/clone-impl.rs:56:14
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LL | drop(clonable_1);
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| ^^^^^^^^^^ has type `Vec<u32>` which does not implement `Copy`
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note: required by a bound in `check_copy`
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--> $DIR/clone-impl.rs:72:18
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LL | fn check_copy<T: Copy>(_x: &T) {}
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| ^^^^ required by this bound in `check_copy`
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error[E0277]: the trait bound `Vec<char>: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:46:23: 46:30}`
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--> $DIR/clone-impl.rs:58:5
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LL | let gen_clone_1 = move || {
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| ------- within this `{coroutine@$DIR/clone-impl.rs:46:23: 46:30}`
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...
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LL | check_copy(&gen_clone_1);
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| ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:46:23: 46:30}`, the trait `Copy` is not implemented for `Vec<char>`, which is required by `{coroutine@$DIR/clone-impl.rs:46:23: 46:30}: Copy`
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note: coroutine does not implement `Copy` as this value is used across a yield
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--> $DIR/clone-impl.rs:52:9
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LL | let v = vec!['a'];
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| - has type `Vec<char>` which does not implement `Copy`
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...
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LL | yield;
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| ^^^^^ yield occurs here, with `v` maybe used later
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note: required by a bound in `check_copy`
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--> $DIR/clone-impl.rs:72:18
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LL | fn check_copy<T: Copy>(_x: &T) {}
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| ^^^^ required by this bound in `check_copy`
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error[E0277]: the trait bound `NonClone: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:62:25: 62:32}`
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--> $DIR/clone-impl.rs:66:5
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LL | let gen_non_clone = move || {
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| ------- within this `{coroutine@$DIR/clone-impl.rs:62:25: 62:32}`
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...
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LL | check_copy(&gen_non_clone);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:62:25: 62:32}`, the trait `Copy` is not implemented for `NonClone`, which is required by `{coroutine@$DIR/clone-impl.rs:62:25: 62:32}: Copy`
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note: captured value does not implement `Copy`
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--> $DIR/clone-impl.rs:64:14
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LL | drop(non_clonable);
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| ^^^^^^^^^^^^ has type `NonClone` which does not implement `Copy`
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note: required by a bound in `check_copy`
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--> $DIR/clone-impl.rs:72:18
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LL | fn check_copy<T: Copy>(_x: &T) {}
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| ^^^^ required by this bound in `check_copy`
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help: consider annotating `NonClone` with `#[derive(Copy)]`
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LL + #[derive(Copy)]
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LL | struct NonClone;
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error[E0277]: the trait bound `NonClone: Clone` is not satisfied in `{coroutine@$DIR/clone-impl.rs:62:25: 62:32}`
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--> $DIR/clone-impl.rs:68:5
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LL | let gen_non_clone = move || {
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| ------- within this `{coroutine@$DIR/clone-impl.rs:62:25: 62:32}`
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...
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LL | check_clone(&gen_non_clone);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:62:25: 62:32}`, the trait `Clone` is not implemented for `NonClone`, which is required by `{coroutine@$DIR/clone-impl.rs:62:25: 62:32}: Clone`
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note: captured value does not implement `Clone`
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--> $DIR/clone-impl.rs:64:14
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LL | drop(non_clonable);
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| ^^^^^^^^^^^^ has type `NonClone` which does not implement `Clone`
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note: required by a bound in `check_clone`
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--> $DIR/clone-impl.rs:73:19
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LL | fn check_clone<T: Clone>(_x: &T) {}
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| ^^^^^ required by this bound in `check_clone`
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help: consider annotating `NonClone` with `#[derive(Clone)]`
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LL + #[derive(Clone)]
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LL | struct NonClone;
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error: aborting due to 6 previous errors
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For more information about this error, try `rustc --explain E0277`.
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