ergonomic_clones use doesn't seem to work

[spastorino]

Given:

#![feature(ergonomic_clones)]

struct Foo;

impl UseCloned for Foo {}

fn main() {
    let f = Foo;

    use || f
}

Here is what happens:

[santiago@galago myapp (master)]$ rustfmt --version
rustfmt 1.8.0-nightly (71e4c005ca 2025-07-01)
[santiago@galago myapp (master)]$ rustfmt --edition 2024 src/main.rs
[santiago@galago myapp (master)]$ git diff
diff --git a/src/main.rs b/src/main.rs
index 910ade0..7bb2e38 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -7,5 +7,5 @@ impl UseCloned for Foo {}
 fn main() {
     let f = Foo;

-    use || f
+    || f
 }

I'm not really sure what's going on as there's this PR #6532 which contains a test that seems to be testing this.

cc @ytmimi

[spastorino]

As @compiler-errors noted here https://rust-lang.zulipchat.com/#narrow/channel/357797-t-rustfmt/topic/ergonomic_clones/with/526829513 this issue is because rustfmt hasn't been synced to https://github.com/rust-lang/rust since a while.

[ytmimi]

We synced rustfmt back with r-l/rust in rust-lang/rust#153145 and I just tested this with rustfmt +nightly-2026-02-28. I can no longer reproduce the error.