error: lifetime parameter `'a` only used once
  --> $DIR/one-use-in-fn-argument-in-band.rs:11:10
   |
LL | fn a(x: &'a u32, y: &'b u32) {
   |          ^^-
   |          |
   |          this lifetime is only used here
   |          help: elide the single-use lifetime
   |
note: the lint level is defined here
  --> $DIR/one-use-in-fn-argument-in-band.rs:4:9
   |
LL | #![deny(single_use_lifetimes)]
   |         ^^^^^^^^^^^^^^^^^^^^

error: lifetime parameter `'b` only used once
  --> $DIR/one-use-in-fn-argument-in-band.rs:11:22
   |
LL | fn a(x: &'a u32, y: &'b u32) {
   |                      ^^-
   |                      |
   |                      this lifetime is only used here
   |                      help: elide the single-use lifetime

error: aborting due to 2 previous errors