error[E0425]: cannot find value `foobar2` in this scope
  --> $DIR/lints_in_proc_macros.rs:9:5
   |
LL |     bang_proc_macro2!();
   |     ^^^^^^^^^^^^^^^^^^^ help: a local variable with a similar name exists: `foobar`
   |
   = note: this error originates in the macro `bang_proc_macro2` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0425`.