error[E0013]: constants cannot refer to statics, use a constant instead
  --> $DIR/issue-17718-references.rs:9:28
   |
LL | const T2: &'static usize = &S; //~ ERROR: constants cannot refer to statics
   |                            ^^

error[E0013]: constants cannot refer to statics, use a constant instead
  --> $DIR/issue-17718-references.rs:14:19
   |
LL | const T6: usize = S; //~ ERROR: constants cannot refer to statics
   |                   ^

error[E0013]: constants cannot refer to statics, use a constant instead
  --> $DIR/issue-17718-references.rs:19:33
   |
LL | const T10: Struct = Struct { a: S };
   |                                 ^

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0013`.