error[E0080]: evaluation of constant value failed
  --> $DIR/ctfe-tail-call-panic.rs:13:15
   |
LL | const _: () = f();
   |               ^^^ evaluation panicked: explicit panic
   |
note: inside `g`
  --> $DIR/ctfe-tail-call-panic.rs:9:5
   |
LL |     panic!()
   |     ^^^^^^^^ the failure occurred here

error: aborting due to 1 previous error

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