error[E0382]: use of moved value
  --> $DIR/issue-53807.rs:4:21
   |
LL |         if let Some(thing) = maybe {
   |                     ^^^^^ value moved here, in previous iteration of loop
   |
   = note: move occurs because value has type `Vec<bool>`, which does not implement the `Copy` trait
help: borrow this binding in the pattern to avoid moving the value
   |
LL |         if let Some(ref thing) = maybe {
   |                     +++

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0382`.