mirror of
https://github.com/rust-lang/rust
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d68f2a6b71
```
error[E0382]: use of moved value: `t`
--> $DIR/use_of_moved_value_copy_suggestions.rs:7:9
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LL | fn duplicate_t<T>(t: T) -> (T, T) {
| - move occurs because `t` has type `T`, which does not implement the `Copy` trait
...
LL | (t, t)
| - ^ value used here after move
| |
| value moved here
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help: if `T` implemented `Clone`, you could clone the value
--> $DIR/use_of_moved_value_copy_suggestions.rs:4:16
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LL | fn duplicate_t<T>(t: T) -> (T, T) {
| ^ consider constraining this type parameter with `Clone`
...
LL | (t, t)
| - you could clone this value
help: consider restricting type parameter `T`
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LL | fn duplicate_t<T: Copy>(t: T) -> (T, T) {
| ++++++
```
The `help` is new. On ADTs, we also extend the output with span labels:
```
error[E0507]: cannot move out of static item `FOO`
--> $DIR/issue-17718-static-move.rs:6:14
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LL | let _a = FOO;
| ^^^ move occurs because `FOO` has type `Foo`, which does not implement the `Copy` trait
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note: if `Foo` implemented `Clone`, you could clone the value
--> $DIR/issue-17718-static-move.rs:1:1
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LL | struct Foo;
| ^^^^^^^^^^ consider implementing `Clone` for this type
...
LL | let _a = FOO;
| --- you could clone this value
help: consider borrowing here
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LL | let _a = &FOO;
| +
```
45 lines
1.5 KiB
Plaintext
45 lines
1.5 KiB
Plaintext
error[E0507]: cannot move out of `self.b`, as `self` is a captured variable in an `Fn` closure
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--> $DIR/issue-103624.rs:16:13
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LL | async fn foo(&self) {
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| ----- captured outer variable
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LL | let bar = self.b.bar().await;
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LL | spawn_blocking(move || {
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| ------- captured by this `Fn` closure
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LL |
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LL | self.b;
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| ^^^^^^ move occurs because `self.b` has type `StructB`, which does not implement the `Copy` trait
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note: if `StructB` implemented `Clone`, you could clone the value
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--> $DIR/issue-103624.rs:23:1
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LL | self.b;
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| ------ you could clone this value
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...
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LL | struct StructB {}
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| ^^^^^^^^^^^^^^ consider implementing `Clone` for this type
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error[E0521]: borrowed data escapes outside of method
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--> $DIR/issue-103624.rs:14:9
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LL | async fn foo(&self) {
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| -----
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| |
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| `self` is a reference that is only valid in the method body
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| let's call the lifetime of this reference `'1`
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LL | let bar = self.b.bar().await;
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LL | / spawn_blocking(move || {
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LL | |
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LL | | self.b;
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LL | |
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LL | | })
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| | ^
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| | |
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| |__________`self` escapes the method body here
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| argument requires that `'1` must outlive `'static`
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error: aborting due to 2 previous errors
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Some errors have detailed explanations: E0507, E0521.
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For more information about an error, try `rustc --explain E0507`.
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