| error[E0308]: mismatched types |
| --> $DIR/closure-print-verbose.rs:10:29 |
| | |
| LL | let foo: fn(u8) -> u8 = |v: u8| { a += v; a }; |
| | ------------ ^^^^^^^^^^^^^^^^^^^^^ expected fn pointer, found closure |
| | | |
| | expected due to this |
| | |
| = note: expected fn pointer `fn(u8) -> u8` |
| found closure `{main::{closure#0} closure_kind_ty=i8 closure_sig_as_fn_ptr_ty=extern "rust-call" fn((u8,)) -> u8 upvar_tys=?4t}` |
| note: closures can only be coerced to `fn` types if they do not capture any variables |
| --> $DIR/closure-print-verbose.rs:10:39 |
| | |
| LL | let foo: fn(u8) -> u8 = |v: u8| { a += v; a }; |
| | ^ `a` captured here |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0308`. |