error[E0080]: evaluation of constant value failed --> $DIR/const_panic_libcore_bin.rs:8:15 | LL | const Z: () = panic!("cheese"); | ^^^^^^^^^^^^^^^^ the evaluated program panicked at 'cheese', $DIR/const_panic_libcore_bin.rs:8:15 | = note: this error originates in the macro `$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[E0080]: evaluation of constant value failed --> $DIR/const_panic_libcore_bin.rs:11:15 | LL | const Y: () = unreachable!(); | ^^^^^^^^^^^^^^ the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic_libcore_bin.rs:11:15 | = note: this error originates in the macro `$crate::panic::unreachable_2015` which comes from the expansion of the macro `unreachable` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0080]: evaluation of constant value failed --> $DIR/const_panic_libcore_bin.rs:14:15 | LL | const X: () = unimplemented!(); | ^^^^^^^^^^^^^^^^ the evaluated program panicked at 'not implemented', $DIR/const_panic_libcore_bin.rs:14:15 | = note: this error originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0080`.