error[E0599]: no method named `map` found for opaque type `impl IntoIterator<Item = i32>` in the current scope
  --> $DIR/collect-without-into-iter-call.rs:6:29
   |
LL |     let other_items = items.map(|i| i + 1);
   |                             ^^^ `impl IntoIterator<Item = i32>` is not an iterator
   |
help: call `.into_iter()` first
   |
LL |     let other_items = items.into_iter().map(|i| i + 1);
   |                             ++++++++++++

error[E0599]: no method named `collect` found for opaque type `impl IntoIterator<Item = i32>` in the current scope
  --> $DIR/collect-without-into-iter-call.rs:8:31
   |
LL |     let vec: Vec<i32> = items.collect();
   |                               ^^^^^^^ `impl IntoIterator<Item = i32>` is not an iterator
   |
help: call `.into_iter()` first
   |
LL |     let vec: Vec<i32> = items.into_iter().collect();
   |                               ++++++++++++

error[E0599]: no method named `collect` found for type parameter `impl IntoIterator<Item = String>` in the current scope
  --> $DIR/collect-without-into-iter-call.rs:17:11
   |
LL |     items.collect()
   |           ^^^^^^^ `impl IntoIterator<Item = String>` is not an iterator
   |
help: call `.into_iter()` first
   |
LL |     items.into_iter().collect()
   |           ++++++++++++

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0599`.