Code
struct Thing(String);
impl Drop for Thing {
fn drop(&mut self) {}
}
fn main() {
Thing(*&mut String::new()) = Thing(String::new());
}Current output
error[E0509]: cannot move out of type `Thing`, which implements the `Drop` trait
--> src/main.rs:8:34
|
8 | Thing(*&mut String::new()) = Thing(String::new());
| ------------------- ^^^^^^^^^^^^^^^^^^^^ cannot move out of here
| |
| data moved here
| move occurs because the place has type `String`, which does not implement the `Copy` trait
|
help: consider borrowing the pattern binding
|
8 | Thing(ref *&mut String::new()) = Thing(String::new());
| +++
help: consider cloning the value if the performance cost is acceptable
|
8 | Thing(*&mut String::new().clone()) = Thing(String::new());
| ++++++++
For more information about this error, try `rustc --explain E0509`.
Desired output
Rationale and extra context
Both suggestions are invalid.
Other cases
Rust Version
Reproducible on the playground with version 1.95.0-nightly (2026-02-12 47611e16044c68ef27ba)
Anything else?
No response
Code
Current output
Desired output
Rationale and extra context
Both suggestions are invalid.
Other cases
Rust Version
Anything else?
No response