error[E0252]: the name `mem` is defined multiple times --> $DIR/use-paths-as-items.rs:7:5 | LL | use std::{mem, ptr}; | --- previous import of the module `mem` here LL | use std::mem; | ^^^^^^^^ `mem` reimported here | = note: `mem` must be defined only once in the type namespace of this module error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0252`.