error[E0308]: mismatched types
  --> $DIR/return-bindings.rs:3:17
   |
LL | fn a(i: i32) -> i32 {}
   |    -            ^^^ expected `i32`, found `()`
   |    |
   |    implicitly returns `()` as its body has no tail or `return` expression
   |
help: consider returning the local binding `i`
   |
LL | fn a(i: i32) -> i32 { i }
   |                       +

error[E0308]: mismatched types
  --> $DIR/return-bindings.rs:7:46
   |
LL |       let s: String = if let Some(s) = opt_str {
   |  ______________________________________________^
LL | |
LL | |     } else {
   | |_____^ expected `String`, found `()`
   |
help: consider returning the local binding `s`
   |
LL ~     let s: String = if let Some(s) = opt_str {
LL +         s
LL ~
   |

error[E0308]: mismatched types
  --> $DIR/return-bindings.rs:14:11
   |
LL | fn c() -> Option<i32> {
   |    -      ^^^^^^^^^^^ expected `Option<i32>`, found `()`
   |    |
   |    implicitly returns `()` as its body has no tail or `return` expression
   |
   = note:   expected enum `Option<i32>`
           found unit type `()`
help: consider returning the local binding `x`
   |
LL ~     let x = Some(1);
LL +     x
   |

error[E0308]: mismatched types
  --> $DIR/return-bindings.rs:20:46
   |
LL |       let s: String = if let Some(s) = opt_str {
   |  ______________________________________________^
LL | |
LL | |     } else {
   | |_____^ expected `String`, found `()`
   |
help: consider returning the local binding `s`
   |
LL ~     let s: String = if let Some(s) = opt_str {
LL +         s
LL ~
   |

error[E0308]: `if` and `else` have incompatible types
  --> $DIR/return-bindings.rs:30:9
   |
LL |       let s = if let Some(s) = opt_str {
   |  ______________________________________-
LL | |     } else {
   | |_____- expected because of this
LL |           String::new()
   |           ^^^^^^^^^^^^^ expected `()`, found `String`
   |
help: consider returning the local binding `s`
   |
LL ~     let s = if let Some(s) = opt_str {
LL +         s
LL ~     } else {
   |

error[E0308]: mismatched types
  --> $DIR/return-bindings.rs:37:20
   |
LL |         Some(s) => {}
   |                    ^^ expected `String`, found `()`
   |
help: consider returning the local binding `s`
   |
LL |         Some(s) => { s }
   |                      +

error[E0308]: `match` arms have incompatible types
  --> $DIR/return-bindings.rs:46:17
   |
LL |       let s = match opt_str {
   |  _____________-
LL | |         Some(s) => {}
   | |                    -- this is found to be of type `()`
LL | |         None => String::new(),
   | |                 ^^^^^^^^^^^^^ expected `()`, found `String`
LL | |
LL | |     };
   | |_____- `match` arms have incompatible types
   |
help: consider returning the local binding `s`
   |
LL |         Some(s) => { s }
   |                      +

error: aborting due to 7 previous errors

For more information about this error, try `rustc --explain E0308`.