error[E0453]: allow(deprecated) incompatible with previous forbid
  --> $DIR/lint-forbid-cmdline.rs:3:9
   |
LL | #[allow(deprecated)]
   |         ^^^^^^^^^^ overruled by previous forbid
   |
   = note: `forbid` lint level was set on command line

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0453`.