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error[E0658]: casting pointers to integers in constants is unstable
--> $DIR/match-test-ptr-null.rs:6:15
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LL | match &1 as *const i32 as usize {
| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: for more information, see https://github.com/rust-lang/rust/issues/51910
= help: add `#![feature(const_raw_ptr_to_usize_cast)]` to the crate attributes to enable
error[E0019]: constant contains unimplemented expression type
--> $DIR/match-test-ptr-null.rs:6:15
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LL | match &1 as *const i32 as usize {
| ^^^^^^^^^^^^^^^^^^^^^^^^^
error[E0019]: constant contains unimplemented expression type
--> $DIR/match-test-ptr-null.rs:10:13
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LL | 0 => 42,
| ^
error[E0080]: evaluation of constant value failed
--> $DIR/match-test-ptr-null.rs:6:15
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LL | match &1 as *const i32 as usize {
| ^^^^^^^^^^^^^^^^^^^^^^^^^ "pointer-to-integer cast" needs an rfc before being allowed inside constants
error: aborting due to 4 previous errors
Some errors have detailed explanations: E0019, E0080, E0658.
For more information about an error, try `rustc --explain E0019`.
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