| error: unnecessary allocation, use `&` instead | |
| --> $DIR/unused-allocation.rs:4:9 | |
| | | |
| LL | _ = Box::new([1]).len(); | |
| | ^^^^^^^^^^^^^ | |
| | | |
| note: the lint level is defined here | |
| --> $DIR/unused-allocation.rs:1:9 | |
| | | |
| LL | #![deny(unused_allocation)] | |
| | ^^^^^^^^^^^^^^^^^ | |
| error: aborting due to 1 previous error | |