error[E0621]: explicit lifetime required in the type of `x` --> $DIR/issue-46983.rs:14:5 | LL | fn foo(x: &u32) -> &'static u32 { | - consider changing the type of `x` to `&'static u32` LL | &*x | ^^^ lifetime `'static` required error: aborting due to previous error For more information about this error, try `rustc --explain E0621`.