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warning: conflicting implementations of trait `SadBee` for type `for<'a> fn(&'a ())`
--> $DIR/invariant.rs:14:1
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LL | impl SadBee for for<'a> fn(&'a ()) {
| ---------------------------------- first implementation here
...
LL | impl SadBee for fn(&'static ()) {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `for<'a> fn(&'a ())`
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #56105 <https://github.com/rust-lang/rust/issues/56105>
= note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details
= note: `#[warn(coherence_leak_check)]` on by default
error[E0308]: mismatched types
--> $DIR/invariant.rs:27:5
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LL | v
| ^ one type is more general than the other
|
= note: expected reference `&Foo<fn(&())>`
found reference `&Foo<for<'a> fn(&'a ())>`
error: aborting due to previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0308`.
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