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error: item has unused generic parameters
--> $DIR/lifetimes.rs:10:8
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LL | pub fn unused<'a, T>(_: &'a u32) {
| ^^^^^^ - generic parameter `T` is unused
error: item has unused generic parameters
--> $DIR/lifetimes.rs:17:19
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LL | pub fn used<'a, T: Default>(_: &'a u32) -> u32 {
| - generic parameter `T` is unused
LL | let _: T = Default::default();
LL | let add_one = |x: u32| x + 1;
| ^^^^^^^^
error: aborting due to 2 previous errors
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