#![allow(unreachable_code)]


fn main() {
    println!("{:?}", {
        Some(1u8).iter().chain(Some(2)).collect::<Vec<_>>()
    });
}


/* ~~~~=== stderr ===~~~~
   Compiling playground v0.0.1 (/playground)
error[E0271]: type mismatch resolving `<std::option::Option<{integer}> as std::iter::IntoIterator>::Item == &u8`
 --> src/main.rs:6:26
  |
6 |         Some(1u8).iter().chain(Some(2)).collect::<Vec<_>>()
  |                          ^^^^^ expected integer, found &u8
  |
  = note: expected type `{integer}`
             found type `&u8`

error[E0599]: no method named `collect` found for type `std::iter::Chain<std::option::Iter<'_, u8>, std::option::IntoIter<{integer}>>` in the current scope
 --> src/main.rs:6:41
  |
6 |         Some(1u8).iter().chain(Some(2)).collect::<Vec<_>>()
  |                                         ^^^^^^^
  |
  = note: the method `collect` exists but the following trait bounds were not satisfied:
          `&mut std::iter::Chain<std::option::Iter<'_, u8>, std::option::IntoIter<{integer}>> : std::iter::Iterator`
          `std::iter::Chain<std::option::Iter<'_, u8>, std::option::IntoIter<{integer}>> : std::iter::Iterator`

error: aborting due to 2 previous errors

Some errors occurred: E0271, E0599.
For more information about an error, try `rustc --explain E0271`.
error: Could not compile `playground`.

To learn more, run the command again with --verbose.

*/

/* ~~~~=== stdout ===~~~~

*/