error[E0254]: the name `issue_45829_b` is defined multiple times --> $DIR/rename-use-vs-extern.rs:4:5 | LL | extern crate issue_45829_b; | --------------------------- previous import of the extern crate `issue_45829_b` here LL | use std as issue_45829_b; | ^^^^^^^^^^^^^^^^^^^^ `issue_45829_b` reimported here | = note: `issue_45829_b` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | LL | use std as other_issue_45829_b; | ~~~~~~~~~~~~~~~~~~~~~~~~~~ error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0254`.