| error[E0152]: duplicate lang item found: `arc`. | |
| --> $DIR/E0152.rs:4:1 | |
| | | |
| LL | struct Foo; | |
| | ^^^^^^^^^^^ | |
| | | |
| = note: first defined in crate `alloc` (which `std` depends on). | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0152`. |