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+error[E0277]: the trait bound `[closure@$DIR/issue-102985.rs:4:23: 4:25]: ~const Fn<()>` is not satisfied
+ --> $DIR/issue-102985.rs:5:14
+ |
+LL | n => n(),
+ | ^^^ expected an `Fn<()>` closure, found `[closure@$DIR/issue-102985.rs:4:23: 4:25]`
+ |
+ = help: the trait `~const Fn<()>` is not implemented for closure `[closure@$DIR/issue-102985.rs:4:23: 4:25]`
+note: the trait `Fn<()>` is implemented for `[closure@$DIR/issue-102985.rs:4:23: 4:25]`, but that implementation is not `const`
+ --> $DIR/issue-102985.rs:5:14
+ |
+LL | n => n(),
+ | ^^^
+ = note: wrap the `[closure@$DIR/issue-102985.rs:4:23: 4:25]` in a closure with no arguments: `|| { /* code */ }`
+
+error[E0277]: the trait bound `[closure@$DIR/issue-102985.rs:4:23: 4:25]: ~const Fn<()>` is not satisfied
+ --> $DIR/issue-102985.rs:5:14
+ |
+LL | n => n(),
+ | ^^^ expected an `Fn<()>` closure, found `[closure@$DIR/issue-102985.rs:4:23: 4:25]`
+ |
+ = help: the trait `~const Fn<()>` is not implemented for closure `[closure@$DIR/issue-102985.rs:4:23: 4:25]`
+note: the trait `Fn<()>` is implemented for `[closure@$DIR/issue-102985.rs:4:23: 4:25]`, but that implementation is not `const`
+ --> $DIR/issue-102985.rs:5:14
+ |
+LL | n => n(),
+ | ^^^
+ = note: wrap the `[closure@$DIR/issue-102985.rs:4:23: 4:25]` in a closure with no arguments: `|| { /* code */ }`
+
+error[E0015]: cannot call non-const closure in constants
+ --> $DIR/issue-102985.rs:5:14
+ |
+LL | n => n(),
+ | ^^^
+ |
+ = note: closures need an RFC before allowed to be called in constants
+ = note: calls in constants are limited to constant functions, tuple structs and tuple variants
+
+error: aborting due to 3 previous errors
+
+Some errors have detailed explanations: E0015, E0277.
+For more information about an error, try `rustc --explain E0015`.