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error[E0005]: refutable pattern in function argument: `&[]` not covered
--> $DIR/const_let_refutable.rs:3:16
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LL | const fn slice([a, b]: &[i32]) -> i32 {
| ^^^^^^ pattern `&[]` not covered
error[E0723]: can only call other `const fn` within a `const fn`, but `const <&i32 as std::ops::Add>::add` is not stable as `const fn`
--> $DIR/const_let_refutable.rs:4:5
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LL | a + b
| ^^^^^
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= note: for more information, see issue https://github.com/rust-lang/rust/issues/57563
= help: add #![feature(const_fn)] to the crate attributes to enable
warning[E0381]: use of possibly uninitialized variable: `a`
--> $DIR/const_let_refutable.rs:4:5
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LL | a + b
| ^ use of possibly uninitialized `a`
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= warning: this error has been downgraded to a warning for backwards compatibility with previous releases
= warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
= note: for more information, try `rustc --explain E0729`
warning[E0381]: use of possibly uninitialized variable: `b`
--> $DIR/const_let_refutable.rs:4:9
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LL | a + b
| ^ use of possibly uninitialized `b`
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= warning: this error has been downgraded to a warning for backwards compatibility with previous releases
= warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
= note: for more information, try `rustc --explain E0729`
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0005, E0381, E0723.
For more information about an error, try `rustc --explain E0005`.
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