error[E0255]: the name `Add` is defined multiple times
  --> $DIR/issue-24081.rs:7:1
   |
LL | use std::ops::Add;
   |     ------------- previous import of the trait `Add` here
...
LL | type Add = bool;
   | ^^^^^^^^^^^^^^^^ `Add` redefined here
   |
   = note: `Add` 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::ops::Add as OtherAdd;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0255]: the name `Sub` is defined multiple times
  --> $DIR/issue-24081.rs:9:1
   |
LL | use std::ops::Sub;
   |     ------------- previous import of the trait `Sub` here
...
LL | struct Sub { x: f32 }
   | ^^^^^^^^^^ `Sub` redefined here
   |
   = note: `Sub` 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::ops::Sub as OtherSub;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0255]: the name `Mul` is defined multiple times
  --> $DIR/issue-24081.rs:11:1
   |
LL | use std::ops::Mul;
   |     ------------- previous import of the trait `Mul` here
...
LL | enum Mul { A, B }
   | ^^^^^^^^ `Mul` redefined here
   |
   = note: `Mul` 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::ops::Mul as OtherMul;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0255]: the name `Div` is defined multiple times
  --> $DIR/issue-24081.rs:13:1
   |
LL | use std::ops::Div;
   |     ------------- previous import of the trait `Div` here
...
LL | mod Div { }
   | ^^^^^^^ `Div` redefined here
   |
   = note: `Div` 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::ops::Div as OtherDiv;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0255]: the name `Rem` is defined multiple times
  --> $DIR/issue-24081.rs:15:1
   |
LL | use std::ops::Rem;
   |     ------------- previous import of the trait `Rem` here
...
LL | trait Rem {  }
   | ^^^^^^^^^ `Rem` redefined here
   |
   = note: `Rem` 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::ops::Rem as OtherRem;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 5 previous errors

For more information about this error, try `rustc --explain E0255`.