1 error[E0308]: mismatched types
2 --> $DIR/closure-no-fn-1.rs:6:29
4 LL | let foo: fn(u8) -> u8 = |v: u8| { a += v; a };
5 | ------------ ^^^^^^^^^^^^^^^^^^^^^ expected fn pointer, found closure
9 = note: expected fn pointer `fn(u8) -> u8`
10 found closure `{closure@$DIR/closure-no-fn-1.rs:6:29: 6:36}`
11 note: closures can only be coerced to `fn` types if they do not capture any variables
12 --> $DIR/closure-no-fn-1.rs:6:39
14 LL | let foo: fn(u8) -> u8 = |v: u8| { a += v; a };
17 error: aborting due to previous error
19 For more information about this error, try `rustc --explain E0308`.