1 error: lifetime parameter `'a` only used once
2 --> $DIR/one-use-in-fn-argument.rs:8:6
4 LL | fn a<'a>(x: &'a u32) { //~ ERROR `'a` only used once
5 | ^^ -- ...is used only here
9 note: lint level defined here
10 --> $DIR/one-use-in-fn-argument.rs:1:9
12 LL | #![deny(single_use_lifetimes)]
13 | ^^^^^^^^^^^^^^^^^^^^
14 help: elide the single-use lifetime
16 LL | fn a(x: &u32) { //~ ERROR `'a` only used once
19 error: aborting due to previous error