error[E0716]: temporary value dropped while borrowed --> $DIR/issue-54224.rs:1:39 | LL | const FOO: Option<&[[u8; 3]]> = Some(&[*b"foo"]); | ------^^^^^^^^^- | | | | | | | temporary value is freed at the end of this statement | | creates a temporary which is freed while still in use | using this value as a constant requires that borrow lasts for `'static` error[E0716]: temporary value dropped while borrowed --> $DIR/issue-54224.rs:9:57 | LL | pub const Z: Cow<'static, [ [u8; 3] ]> = Cow::Borrowed(&[*b"ABC"]); | ---------------^^^^^^^^^- | | | | | | | temporary value is freed at the end of this statement | | creates a temporary which is freed while still in use | using this value as a constant requires that borrow lasts for `'static` error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0716`.