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error: changes to closure capture in Rust 2021 will affect which traits the closure implements
--> $DIR/mir_calls_to_shims.rs:20:38
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LL | let result = panic::catch_unwind(move || {
| ^^^^^^^
| |
| in Rust 2018, this closure implements `RefUnwindSafe` as `f` implements `RefUnwindSafe`, but in Rust 2021, this closure will no longer implement `RefUnwindSafe` because `f` is not fully captured and `f.0` does not implement `RefUnwindSafe`
| in Rust 2018, this closure implements `UnwindSafe` as `f` implements `UnwindSafe`, but in Rust 2021, this closure will no longer implement `UnwindSafe` because `f` is not fully captured and `f.0` does not implement `UnwindSafe`
...
LL | f.0()
| --- in Rust 2018, this closure captures all of `f`, but in Rust 2021, it will only capture `f.0`
|
= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/disjoint-capture-in-closures.html>
note: the lint level is defined here
--> $DIR/mir_calls_to_shims.rs:4:9
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LL | #![deny(rust_2021_incompatible_closure_captures)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: add a dummy let to cause `f` to be fully captured
|
LL ~ let result = panic::catch_unwind(move || {
LL + let _ = &f;
|
error: aborting due to previous error
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