error[E0080]: evaluation of constant value failed
  --> $DIR/unwind-abort.rs:4:5
   |
LL |     panic!()
   |     ^^^^^^^^
   |     |
   |     the evaluated program panicked at 'explicit panic', $DIR/unwind-abort.rs:4:5
   |     inside `foo` at $SRC_DIR/std/src/panic.rs:LL:COL
...
LL | const _: () = foo();
   |               ----- inside `_` at $DIR/unwind-abort.rs:7:15
   |
   = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to previous error

For more information about this error, try `rustc --explain E0080`.