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37 lines
1.5 KiB
Plaintext
37 lines
1.5 KiB
Plaintext
error[E0597]: `foo` does not live long enough
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--> $DIR/issue-90600-expected-return-static-indirect.rs:7:32
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LL | fn inner(mut foo: &[u8]) {
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| ------- binding `foo` declared here
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LL | let refcell = RefCell::new(&mut foo);
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| ^^^^^^^^ borrowed value does not live long enough
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...
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LL | read_thing(read);
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| ---------------- argument requires that `foo` is borrowed for `'static`
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LL |
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LL | }
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| - `foo` dropped here while still borrowed
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error[E0521]: borrowed data escapes outside of function
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--> $DIR/issue-90600-expected-return-static-indirect.rs:11:5
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LL | fn inner(mut foo: &[u8]) {
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| ------- - let's call the lifetime of this reference `'1`
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| |
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| `foo` is a reference that is only valid in the function body
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...
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LL | read_thing(read);
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| ^^^^^^^^^^^^^^^^
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| |
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| `foo` escapes the function body here
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| argument requires that `'1` must outlive `'static`
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= note: requirement occurs because of the type `RefCell<(dyn std::io::Read + 'static)>`, which makes the generic argument `(dyn std::io::Read + 'static)` invariant
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= note: the struct `RefCell<T>` is invariant over the parameter `T`
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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 2 previous errors
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Some errors have detailed explanations: E0521, E0597.
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For more information about an error, try `rustc --explain E0521`.
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