1 error[E0080]: evaluation of constant value failed
2 --> $DIR/issue-88434-minimal-example.rs:11:5
4 LL | const _CONST: &() = &f(&|_| {});
5 | ---------- inside `_CONST` at $DIR/issue-88434-minimal-example.rs:3:22
10 | the evaluated program panicked at 'explicit panic', $DIR/issue-88434-minimal-example.rs:11:5
11 | inside `f::<[closure@$DIR/issue-88434-minimal-example.rs:3:25: 3:28]>` at $SRC_DIR/std/src/panic.rs:LL:COL
13 = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
15 error: any use of this value will cause an error
16 --> $DIR/issue-88434-minimal-example.rs:3:21
18 LL | const _CONST: &() = &f(&|_| {});
19 | ----------------- ^^^^^^^^^^^ referenced constant has errors
21 = note: `#[deny(const_err)]` on by default
22 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
23 = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
25 error: aborting due to 2 previous errors
27 For more information about this error, try `rustc --explain E0080`.
28 Future incompatibility report: Future breakage diagnostic:
29 error: any use of this value will cause an error
30 --> $DIR/issue-88434-minimal-example.rs:3:21
32 LL | const _CONST: &() = &f(&|_| {});
33 | ----------------- ^^^^^^^^^^^ referenced constant has errors
35 = note: `#[deny(const_err)]` on by default
36 = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
37 = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>