tests/ui/cross/cross-file-errors/main.stderr

   1 error: in expressions, `_` can only be used on the left-hand side of an assignment
   2   --> $DIR/underscore.rs:8:9
   3    |
   4 LL |         _
   5    |         ^ `_` not allowed here
   6    |
   7   ::: $DIR/main.rs:5:5
   8    |
   9 LL |     underscore!();
  10    |     ------------- in this macro invocation
  11    |
  12    = note: this error originates in the macro `underscore` (in Nightly builds, run with -Z macro-backtrace for more info)
  13
  14 error: aborting due to previous error
  15