error[E0080]: evaluation of constant value failed --> $DIR/const_fn_ptr_fail2.rs:9:5 | LL | x(y) | ^^^^ calling non-const function `double` | note: inside `bar` --> $DIR/const_fn_ptr_fail2.rs:9:5 | LL | x(y) | ^^^^ note: inside `Y` --> $DIR/const_fn_ptr_fail2.rs:14:18 | LL | const Y: usize = bar(X, 2); // FIXME: should fail to typeck someday | ^^^^^^^^^ error[E0080]: evaluation of constant value failed --> $DIR/const_fn_ptr_fail2.rs:9:5 | LL | x(y) | ^^^^ calling non-const function `double` | note: inside `bar` --> $DIR/const_fn_ptr_fail2.rs:9:5 | LL | x(y) | ^^^^ note: inside `Z` --> $DIR/const_fn_ptr_fail2.rs:15:18 | LL | const Z: usize = bar(double, 2); // FIXME: should fail to typeck someday | ^^^^^^^^^^^^^^ warning: skipping const checks | help: skipping check that does not even have a feature gate --> $DIR/const_fn_ptr_fail2.rs:9:5 | LL | x(y) | ^^^^ error: aborting due to 2 previous errors; 1 warning emitted For more information about this error, try `rustc --explain E0080`.