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8faf50e0 1error[E0277]: the type `std::cell::UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
60c5eb7d 2 --> $DIR/interior-mutability.rs:6:5
041b39d2 3 |
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4LL | catch_unwind(|| { x.set(23); });
5 | ^^^^^^^^^^^^ `std::cell::UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
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6 |
7 ::: $SRC_DIR/libstd/panic.rs:LL:COL
8 |
9LL | pub fn catch_unwind<F: FnOnce() -> R + UnwindSafe, R>(f: F) -> Result<R> {
10 | ---------- required by this bound in `std::panic::catch_unwind`
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11 |
12 = help: within `std::cell::Cell<i32>`, the trait `std::panic::RefUnwindSafe` is not implemented for `std::cell::UnsafeCell<i32>`
13 = note: required because it appears within the type `std::cell::Cell<i32>`
14 = note: required because of the requirements on the impl of `std::panic::UnwindSafe` for `&std::cell::Cell<i32>`
60c5eb7d 15 = note: required because it appears within the type `[closure@$DIR/interior-mutability.rs:6:18: 6:35 x:&std::cell::Cell<i32>]`
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16
17error: aborting due to previous error
18
0531ce1d 19For more information about this error, try `rustc --explain E0277`.