mirror of https://github.com/rust-lang/rust
60 lines
1.6 KiB
Plaintext
60 lines
1.6 KiB
Plaintext
error: lifetime parameter `'a` only used once
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--> $DIR/one-use-in-fn-argument.rs:8:6
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LL | fn a<'a>(x: &'a u32) {
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| ^^ -- ...is used only here
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| this lifetime...
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note: the lint level is defined here
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--> $DIR/one-use-in-fn-argument.rs:1:9
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LL | #![deny(single_use_lifetimes)]
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| ^^^^^^^^^^^^^^^^^^^^
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help: elide the single-use lifetime
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LL - fn a<'a>(x: &'a u32) {
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LL + fn a(x: &u32) {
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error: lifetime parameter `'m` only used once
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--> $DIR/one-use-in-fn-argument.rs:15:11
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LL | fn center<'m>(_: Single<'m>) {}
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| ^^ -- ...is used only here
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| this lifetime...
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help: elide the single-use lifetime
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LL - fn center<'m>(_: Single<'m>) {}
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LL + fn center(_: Single<'_>) {}
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error: lifetime parameter `'y` only used once
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--> $DIR/one-use-in-fn-argument.rs:17:13
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LL | fn left<'x, 'y>(foo: Double<'x, 'y>) -> &'x u32 { foo.f }
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| ^^ this lifetime... -- ...is used only here
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help: elide the single-use lifetime
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LL - fn left<'x, 'y>(foo: Double<'x, 'y>) -> &'x u32 { foo.f }
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LL + fn left<'x>(foo: Double<'x, '_>) -> &'x u32 { foo.f }
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error: lifetime parameter `'x` only used once
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--> $DIR/one-use-in-fn-argument.rs:19:10
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LL | fn right<'x, 'y>(foo: Double<'x, 'y>) -> &'y u32 { foo.f }
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| ^^ this lifetime... -- ...is used only here
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help: elide the single-use lifetime
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LL - fn right<'x, 'y>(foo: Double<'x, 'y>) -> &'y u32 { foo.f }
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LL + fn right<'y>(foo: Double<'_, 'y>) -> &'y u32 { foo.f }
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error: aborting due to 4 previous errors
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