warning: for loop over an `Option`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:5:14
   |
LL |     for _ in Some(1) {}
   |              ^^^^^^^
   |
   = note: `#[warn(for_loops_over_fallibles)]` on by default
help: to check pattern in a loop use `while let`
   |
LL |     while let Some(_) = Some(1) {}
   |     ~~~~~~~~~~~~~~~ ~~~
help: consider using `if let` to clear intent
   |
LL |     if let Some(_) = Some(1) {}
   |     ~~~~~~~~~~~~ ~~~

warning: for loop over a `Result`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:9:14
   |
LL |     for _ in Ok::<_, ()>(1) {}
   |              ^^^^^^^^^^^^^^
   |
help: to check pattern in a loop use `while let`
   |
LL |     while let Ok(_) = Ok::<_, ()>(1) {}
   |     ~~~~~~~~~~~~~ ~~~
help: consider using `if let` to clear intent
   |
LL |     if let Ok(_) = Ok::<_, ()>(1) {}
   |     ~~~~~~~~~~ ~~~

warning: for loop over an `Option`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:15:14
   |
LL |     for _ in [0; 0].iter().next() {}
   |              ^^^^^^^^^^^^^^^^^^^^
   |
help: to iterate over `[0; 0].iter()` remove the call to `next`
   |
LL |     for _ in [0; 0].iter().by_ref() {}
   |                           ~~~~~~~~~
help: consider using `if let` to clear intent
   |
LL |     if let Some(_) = [0; 0].iter().next() {}
   |     ~~~~~~~~~~~~ ~~~

warning: for loop over a `Result`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:21:14
   |
LL |     for _ in Ok::<_, ()>([0; 0].iter()) {}
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: to check pattern in a loop use `while let`
   |
LL |     while let Ok(_) = Ok::<_, ()>([0; 0].iter()) {}
   |     ~~~~~~~~~~~~~ ~~~
help: consider using `if let` to clear intent
   |
LL |     if let Ok(_) = Ok::<_, ()>([0; 0].iter()) {}
   |     ~~~~~~~~~~ ~~~

warning: for loop over a `Result`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:29:14
   |
LL |     for _ in Ok::<_, ()>([0; 0].iter()) {}
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: to check pattern in a loop use `while let`
   |
LL |     while let Ok(_) = Ok::<_, ()>([0; 0].iter()) {}
   |     ~~~~~~~~~~~~~ ~~~
help: consider unwrapping the `Result` with `?` to iterate over its contents
   |
LL |     for _ in Ok::<_, ()>([0; 0].iter())? {}
   |                                        +
help: consider using `if let` to clear intent
   |
LL |     if let Ok(_) = Ok::<_, ()>([0; 0].iter()) {}
   |     ~~~~~~~~~~ ~~~

warning: for loop over a `Result`. This is more readably written as an `if let` statement
  --> $DIR/for_loop_over_fallibles.rs:36:14
   |
LL |     for _ in Ok::<_, ()>([0; 0]) {}
   |              ^^^^^^^^^^^^^^^^^^^
   |
help: to check pattern in a loop use `while let`
   |
LL |     while let Ok(_) = Ok::<_, ()>([0; 0]) {}
   |     ~~~~~~~~~~~~~ ~~~
help: consider unwrapping the `Result` with `?` to iterate over its contents
   |
LL |     for _ in Ok::<_, ()>([0; 0])? {}
   |                                 +
help: consider using `if let` to clear intent
   |
LL |     if let Ok(_) = Ok::<_, ()>([0; 0]) {}
   |     ~~~~~~~~~~ ~~~

warning: 6 warnings emitted