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21 lines
913 B
Plaintext
21 lines
913 B
Plaintext
error: lifetime may not live long enough
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--> $DIR/ex3-both-anon-regions-using-impl-items.rs:6:9
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LL | fn foo(x: &mut Vec<&u8>, y: &u8) {
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| - - let's call the lifetime of this reference `'1`
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| let's call the lifetime of this reference `'2`
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LL | x.push(y);
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| ^^^^^^^^^ argument requires that `'1` must outlive `'2`
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= note: requirement occurs because of a mutable reference to `Vec<&u8>`
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= note: mutable references are invariant over their type parameter
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= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
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help: consider introducing a named lifetime parameter and update trait if needed
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LL | fn foo<'a>(x: &mut Vec<&'a u8>, y: &'a u8) {
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| ++++ ++ ++
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error: aborting due to 1 previous error
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