error: any use of this value will cause an error --> $DIR/const-slice-oob.rs:4:18 | LL | const BAR: u32 = FOO[5]; | -------------- ^^^^^^ index out of bounds: the length is 3 but the index is 5 | = note: `#[deny(const_err)]` on by default = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #71800 error: aborting due to previous error Future incompatibility report: Future breakage diagnostic: error: any use of this value will cause an error --> $DIR/const-slice-oob.rs:4:18 | LL | const BAR: u32 = FOO[5]; | -------------- ^^^^^^ index out of bounds: the length is 3 but the index is 5 | = note: `#[deny(const_err)]` on by default = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #71800