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error[E0391]: cycle detected when computing whether `<impl at $DIR/impl-wf-cycle-4.rs:5:1: 7:26>` has a guaranteed unsized self type
--> $DIR/impl-wf-cycle-4.rs:5:1
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LL | / impl<T> Filter for T
LL | | where
LL | | T: Fn(Self::ToMatch),
| |_________________________^
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note: ...which requires computing normalized predicates of `<impl at $DIR/impl-wf-cycle-4.rs:5:1: 7:26>`...
--> $DIR/impl-wf-cycle-4.rs:5:1
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LL | / impl<T> Filter for T
LL | | where
LL | | T: Fn(Self::ToMatch),
| |_________________________^
= note: ...which again requires computing whether `<impl at $DIR/impl-wf-cycle-4.rs:5:1: 7:26>` has a guaranteed unsized self type, completing the cycle
note: cycle used when checking that `<impl at $DIR/impl-wf-cycle-4.rs:5:1: 7:26>` is well-formed
--> $DIR/impl-wf-cycle-4.rs:5:1
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LL | / impl<T> Filter for T
LL | | where
LL | | T: Fn(Self::ToMatch),
| |_________________________^
= note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0391`.
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