error[E0382]: use of moved value: `vec`
  --> $DIR/recreating-value-in-loop-condition.rs:6:33
   |
LL |     let vec = vec!["one", "two", "three"];
   |         --- move occurs because `vec` has type `Vec<&str>`, which does not implement the `Copy` trait
LL |     while let Some(item) = iter(vec).next() {
   |     ----------------------------^^^--------
   |     |                           |
   |     |                           value moved here, in previous iteration of loop
   |     inside of this loop
   |
note: consider changing this parameter type in function `iter` to borrow instead if owning the value isn't necessary
  --> $DIR/recreating-value-in-loop-condition.rs:1:17
   |
LL | fn iter<T>(vec: Vec<T>) -> impl Iterator<Item = T> {
   |    ----         ^^^^^^ this parameter takes ownership of the value
   |    |
   |    in this function
help: consider moving the expression out of the loop so it is only moved once
   |
LL ~     let mut value = iter(vec);
LL ~     while let Some(item) = value.next() {
   |

error[E0382]: use of moved value: `vec`
  --> $DIR/recreating-value-in-loop-condition.rs:15:31
   |
LL |     let vec = vec!["one", "two", "three"];
   |         --- move occurs because `vec` has type `Vec<&str>`, which does not implement the `Copy` trait
LL |     loop {
   |     ---- inside of this loop
LL |
LL |         let Some(item) = iter(vec).next() else {
   |                               ^^^ value moved here, in previous iteration of loop
   |
note: consider changing this parameter type in function `iter` to borrow instead if owning the value isn't necessary
  --> $DIR/recreating-value-in-loop-condition.rs:1:17
   |
LL | fn iter<T>(vec: Vec<T>) -> impl Iterator<Item = T> {
   |    ----         ^^^^^^ this parameter takes ownership of the value
   |    |
   |    in this function
help: consider moving the expression out of the loop so it is only moved once
   |
LL ~     let mut value = iter(vec);
LL ~     loop {
LL |
LL ~         let Some(item) = value.next() else {
   |

error[E0382]: use of moved value: `vec`
  --> $DIR/recreating-value-in-loop-condition.rs:25:25
   |
LL |     let vec = vec!["one", "two", "three"];
   |         --- move occurs because `vec` has type `Vec<&str>`, which does not implement the `Copy` trait
LL |     loop {
   |     ---- inside of this loop
LL |
LL |         let item = iter(vec).next();
   |                         ^^^ value moved here, in previous iteration of loop
   |
note: consider changing this parameter type in function `iter` to borrow instead if owning the value isn't necessary
  --> $DIR/recreating-value-in-loop-condition.rs:1:17
   |
LL | fn iter<T>(vec: Vec<T>) -> impl Iterator<Item = T> {
   |    ----         ^^^^^^ this parameter takes ownership of the value
   |    |
   |    in this function
help: consider moving the expression out of the loop so it is only moved once
   |
LL ~     let mut value = iter(vec);
LL ~     loop {
LL |
LL ~         let item = value.next();
   |
help: consider cloning the value if the performance cost is acceptable
   |
LL |         let item = iter(vec.clone()).next();
   |                            ++++++++

error[E0382]: use of moved value: `vec`
  --> $DIR/recreating-value-in-loop-condition.rs:37:34
   |
LL |     let vec = vec!["one", "two", "three"];
   |         --- move occurs because `vec` has type `Vec<&str>`, which does not implement the `Copy` trait
LL |     loop {
   |     ---- inside of this loop
LL |
LL |         if let Some(item) = iter(vec).next() {
   |                                  ^^^ value moved here, in previous iteration of loop
   |
note: consider changing this parameter type in function `iter` to borrow instead if owning the value isn't necessary
  --> $DIR/recreating-value-in-loop-condition.rs:1:17
   |
LL | fn iter<T>(vec: Vec<T>) -> impl Iterator<Item = T> {
   |    ----         ^^^^^^ this parameter takes ownership of the value
   |    |
   |    in this function
help: consider moving the expression out of the loop so it is only moved once
   |
LL ~     let mut value = iter(vec);
LL ~     loop {
LL |
LL ~         if let Some(item) = value.next() {
   |

error[E0382]: use of moved value: `vec`
  --> $DIR/recreating-value-in-loop-condition.rs:50:46
   |
LL |         let vec = vec!["one", "two", "three"];
   |             --- move occurs because `vec` has type `Vec<&str>`, which does not implement the `Copy` trait
LL |         loop {
   |         ---- inside of this loop
LL |
LL |             loop {
   |             ---- inside of this loop
LL |                 loop {
   |                 ---- inside of this loop
LL |                     if let Some(item) = iter(vec).next() {
   |                                              ^^^ value moved here, in previous iteration of loop
   |
note: consider changing this parameter type in function `iter` to borrow instead if owning the value isn't necessary
  --> $DIR/recreating-value-in-loop-condition.rs:1:17
   |
LL | fn iter<T>(vec: Vec<T>) -> impl Iterator<Item = T> {
   |    ----         ^^^^^^ this parameter takes ownership of the value
   |    |
   |    in this function
note: verify that your loop breaking logic is correct
  --> $DIR/recreating-value-in-loop-condition.rs:52:25
   |
LL |     loop {
   |     ----
LL |         let vec = vec!["one", "two", "three"];
LL |         loop {
   |         ----
LL |
LL |             loop {
   |             ----
LL |                 loop {
   |                 ----
...
LL |                         break;
   |                         ^^^^^ this `break` exits the loop at line 49
help: consider moving the expression out of the loop so it is only moved once
   |
LL ~         let mut value = iter(vec);
LL ~         loop {
LL |
LL |             loop {
LL |                 loop {
LL ~                     if let Some(item) = value.next() {
   |

error: aborting due to 5 previous errors

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