error[E0428]: the name `X` is defined multiple times
  --> $DIR/unit-like-struct-masks-constant-7044.rs:3:1
   |
LL | static X: isize = 0;
   | -------------------- previous definition of the value `X` here
LL | struct X;
   | ^^^^^^^^^ `X` redefined here
   |
   = note: `X` must be defined only once in the value namespace of this module

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0428`.