1error[E0434]: can't capture dynamic environment in a fn item 2 --> $DIR/capture1.rs:5:32 3 | 4LL | fn foo() -> isize { return bar; } 5 | ^^^ 6 | 7 = help: use the `|| { ... }` closure form instead 8 9error: aborting due to previous error 10 11For more information about this error, try `rustc --explain E0434`. 12