error[E0477]: the type `&'a u32` does not fulfill the required lifetime
  --> $DIR/issue-54943.rs:6:13
   |
LL |     let x = foo::<&'a u32>();
   |             ^^^^^^^^^^^^^^
   |
   = note: type must satisfy the static lifetime

error: aborting due to previous error

For more information about this error, try `rustc --explain E0477`.