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warning: this function depends on never type fallback being `()`
--> $DIR/dependency-on-fallback-to-unit.rs:8:1
|
LL | fn def() {
| ^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: Default` will fail
--> $DIR/dependency-on-fallback-to-unit.rs:12:19
|
LL | false => <_>::default(),
| ^
= note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default
help: use `()` annotations to avoid fallback changes
|
LL - false => <_>::default(),
LL + false => <()>::default(),
|
warning: this function depends on never type fallback being `()`
--> $DIR/dependency-on-fallback-to-unit.rs:19:1
|
LL | fn question_mark() -> Result<(), ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/never-type-fallback.html>
= help: specify the types explicitly
note: in edition 2024, the requirement `!: Default` will fail
--> $DIR/dependency-on-fallback-to-unit.rs:22:5
|
LL | deserialize()?;
| ^^^^^^^^^^^^^
help: use `()` annotations to avoid fallback changes
|
LL | deserialize::<()>()?;
| ++++++
warning: 2 warnings emitted
|
