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16 lines
663 B
Plaintext
16 lines
663 B
Plaintext
error: lifetime may not live long enough
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--> $DIR/regions-variance-invariant-use-covariant.rs:17:12
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LL | fn use_<'b>(c: Invariant<'b>) {
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| -- lifetime `'b` defined here
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...
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LL | let _: Invariant<'static> = c;
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| ^^^^^^^^^^^^^^^^^^ type annotation requires that `'b` must outlive `'static`
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= note: requirement occurs because of the type `Invariant<'_>`, which makes the generic argument `'_` invariant
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= note: the struct `Invariant<'a>` is invariant over the parameter `'a`
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= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
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error: aborting due to 1 previous error
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