1error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
2  --> $DIR/unchecked_math_unstable.rs:4:19
3   |
4LL |         let add = std::intrinsics::unchecked_add(x, y);
5   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
6   |
7   = help: add `#![feature(core_intrinsics)]` to the crate attributes to enable
8
9error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
10  --> $DIR/unchecked_math_unstable.rs:5:19
11   |
12LL |         let sub = std::intrinsics::unchecked_sub(x, y);
13   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
14   |
15   = help: add `#![feature(core_intrinsics)]` to the crate attributes to enable
16
17error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
18  --> $DIR/unchecked_math_unstable.rs:6:19
19   |
20LL |         let mul = std::intrinsics::unchecked_mul(x, y);
21   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
22   |
23   = help: add `#![feature(core_intrinsics)]` to the crate attributes to enable
24
25error: aborting due to 3 previous errors
26
27For more information about this error, try `rustc --explain E0658`.
28