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error: implementation of `FnOnce` is not general enough
--> $DIR/higher-ranked-auto-trait-14.rs:20:5
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LL | / async move {
LL | | let xs = unique_x.union(&cached)
LL | | // .copied() // works
LL | | .map(|x| *x) // error
LL | | ;
LL | | let blah = val.blah(xs.into_iter()).await;
LL | | }
| |_____^ implementation of `FnOnce` is not general enough
|
= note: closure with signature `fn(&'0 u32) -> u32` must implement `FnOnce<(&'1 u32,)>`, for any two lifetimes `'0` and `'1`...
= note: ...but it actually implements `FnOnce<(&u32,)>`
error: implementation of `FnOnce` is not general enough
--> $DIR/higher-ranked-auto-trait-14.rs:20:5
|
LL | / async move {
LL | | let xs = unique_x.union(&cached)
LL | | // .copied() // works
LL | | .map(|x| *x) // error
LL | | ;
LL | | let blah = val.blah(xs.into_iter()).await;
LL | | }
| |_____^ implementation of `FnOnce` is not general enough
|
= note: closure with signature `fn(&'0 u32) -> u32` must implement `FnOnce<(&'1 u32,)>`, for any two lifetimes `'0` and `'1`...
= note: ...but it actually implements `FnOnce<(&u32,)>`
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error: aborting due to 2 previous errors
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