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`.