error[E0382]: use of moved value: `state`
  --> $DIR/issue-101119.rs:7:14
   |
LL | fn fill_memory_blocks_mt(state: &mut State) {
   |                          ----- move occurs because `state` has type `&mut State`, which does not implement the `Copy` trait
LL |     loop {
   |     ---- inside of this loop
LL |         once(move || {
   |              ^^^^^^^ value moved into closure here, in previous iteration of loop
LL |
LL |             fill_segment(state);
   |                          ----- use occurs due to use in closure
   |
note: consider changing this parameter type in function `fill_segment` to borrow instead if owning the value isn't necessary
  --> $DIR/issue-101119.rs:14:20
   |
LL | fn fill_segment(_: &mut State) {}
   |    ------------    ^^^^^^^^^^ this parameter takes ownership of the value
   |    |
   |    in this function

error: aborting due to 1 previous error

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