error[E0308]: mismatched types
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:5:5
   |
LL | fn foo() -> impl std::fmt::Display {
   |             ---------------------- expected `i32` because of return type
...
LL |     1u32
   |     ^^^^ expected `i32`, found `u32`
   |
help: change the type of the numeric literal from `u32` to `i32`
   |
LL |     1i32
   |      ~~~

error[E0308]: mismatched types
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:12:16
   |
LL | fn bar() -> impl std::fmt::Display {
   |             ---------------------- expected `i32` because of return type
...
LL |         return 1u32;
   |                ^^^^ expected `i32`, found `u32`
   |
help: change the type of the numeric literal from `u32` to `i32`
   |
LL |         return 1i32;
   |                 ~~~

error[E0308]: mismatched types
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:20:9
   |
LL | fn baz() -> impl std::fmt::Display {
   |             ---------------------- expected `i32` because of return type
...
LL |         1u32
   |         ^^^^ expected `i32`, found `u32`
   |
help: you can convert a `u32` to an `i32` and panic if the converted value doesn't fit
   |
LL |     }.try_into().unwrap()
   |      ++++++++++++++++++++

error[E0308]: `if` and `else` have incompatible types
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:28:9
   |
LL | /     if false {
LL | |         0i32
   | |         ---- expected because of this
LL | |     } else {
LL | |         1u32
   | |         ^^^^ expected `i32`, found `u32`
LL | |     }
   | |_____- `if` and `else` have incompatible types
   |
help: you could change the return type to be a boxed trait object
   |
LL | fn qux() -> Box<dyn std::fmt::Display> {
   |             ~~~~~~~                  +
help: if you change the return type to expect trait objects, box the returned expressions
   |
LL ~         Box::new(0i32)
LL |     } else {
LL ~         Box::new(1u32)
   |
help: change the type of the numeric literal from `u32` to `i32`
   |
LL |         1i32
   |          ~~~

error[E0308]: mismatched types
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:35:14
   |
LL | fn bat() -> impl std::fmt::Display {
   |             ---------------------- expected `i32` because of return type
...
LL |         _ => 1u32,
   |              ^^^^ expected `i32`, found `u32`
   |
help: you can convert a `u32` to an `i32` and panic if the converted value doesn't fit
   |
LL |     }.try_into().unwrap()
   |      ++++++++++++++++++++

error[E0308]: mismatched types
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:40:5
   |
LL |   fn can() -> impl std::fmt::Display {
   |               ---------------------- expected `i32` because of return type
LL | /     match 13 {
LL | |         0 => return 0i32,
LL | |         1 => 1u32,
LL | |         _ => 2u32,
LL | |     }
   | |_____^ expected `i32`, found `u32`
   |
help: you can convert a `u32` to an `i32` and panic if the converted value doesn't fit
   |
LL |     }.try_into().unwrap()
   |      ++++++++++++++++++++

error[E0308]: mismatched types
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:53:13
   |
LL | fn cat() -> impl std::fmt::Display {
   |             ---------------------- expected `i32` because of return type
...
LL |             1u32
   |             ^^^^ expected `i32`, found `u32`
   |
help: you can convert a `u32` to an `i32` and panic if the converted value doesn't fit
   |
LL |     }.try_into().unwrap()
   |      ++++++++++++++++++++

error[E0308]: `match` arms have incompatible types
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:61:14
   |
LL | /     match 13 {
LL | |         0 => 0i32,
   | |              ---- this is found to be of type `i32`
LL | |         1 => 1u32,
   | |              ^^^^ expected `i32`, found `u32`
LL | |         _ => 2u32,
LL | |     }
   | |_____- `match` arms have incompatible types
   |
help: you could change the return type to be a boxed trait object
   |
LL | fn dog() -> Box<dyn std::fmt::Display> {
   |             ~~~~~~~                  +
help: if you change the return type to expect trait objects, box the returned expressions
   |
LL ~         0 => Box::new(0i32),
LL ~         1 => Box::new(1u32),
   |
help: change the type of the numeric literal from `u32` to `i32`
   |
LL |         1 => 1i32,
   |               ~~~

error[E0308]: `if` and `else` have incompatible types
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:97:9
   |
LL | /     if let Some(42) = Some(42) {
LL | |         0i32
   | |         ---- expected because of this
LL | |     } else {
LL | |         1u32
   | |         ^^^^ expected `i32`, found `u32`
LL | |     }
   | |_____- `if` and `else` have incompatible types
   |
help: you could change the return type to be a boxed trait object
   |
LL | fn apt() -> Box<dyn std::fmt::Display> {
   |             ~~~~~~~                  +
help: if you change the return type to expect trait objects, box the returned expressions
   |
LL ~         Box::new(0i32)
LL |     } else {
LL ~         Box::new(1u32)
   |
help: change the type of the numeric literal from `u32` to `i32`
   |
LL |         1i32
   |          ~~~

error[E0746]: return type cannot have an unboxed trait object
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:66:13
   |
LL | fn hat() -> dyn std::fmt::Display {
   |             ^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
   |
   = note: for information on trait objects, see <https://doc.rust-lang.org/book/ch17-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types>
   = note: if all the returned values were of the same type you could use `impl std::fmt::Display` as the return type
   = note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits>
   = note: you can create a new `enum` with a variant for each returned type
help: return a boxed trait object instead
   |
LL | fn hat() -> Box<dyn std::fmt::Display> {
   |             ++++                     +
help: ... and box this value
   |
LL |             return Box::new(0i32);
   |                    +++++++++    +
help: ... and box this value
   |
LL |             Box::new(1u32)
   |             +++++++++    +

error[E0308]: `match` arms have incompatible types
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:80:14
   |
LL | /     match 13 {
LL | |         0 => 0i32,
   | |              ---- this is found to be of type `i32`
LL | |         1 => 1u32,
   | |              ^^^^ expected `i32`, found `u32`
LL | |         _ => 2u32,
LL | |     }
   | |_____- `match` arms have incompatible types
   |
help: change the type of the numeric literal from `u32` to `i32`
   |
LL |         1 => 1i32,
   |               ~~~

error[E0746]: return type cannot have an unboxed trait object
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:77:13
   |
LL | fn pug() -> dyn std::fmt::Display {
   |             ^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
   |
   = note: for information on trait objects, see <https://doc.rust-lang.org/book/ch17-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types>
   = note: if all the returned values were of the same type you could use `impl std::fmt::Display` as the return type
   = note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits>
   = note: you can create a new `enum` with a variant for each returned type
help: return a boxed trait object instead
   |
LL | fn pug() -> Box<dyn std::fmt::Display> {
   |             ++++                     +
help: ... and box this value
   |
LL |         0 => Box::new(0i32),
   |              +++++++++    +
help: ... and box this value
   |
LL |         1 => Box::new(1u32),
   |              +++++++++    +
help: ... and box this value
   |
LL |         _ => Box::new(2u32),
   |              +++++++++    +

error[E0308]: `if` and `else` have incompatible types
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:89:9
   |
LL | /     if false {
LL | |         0i32
   | |         ---- expected because of this
LL | |     } else {
LL | |         1u32
   | |         ^^^^ expected `i32`, found `u32`
LL | |     }
   | |_____- `if` and `else` have incompatible types
   |
help: change the type of the numeric literal from `u32` to `i32`
   |
LL |         1i32
   |          ~~~

error[E0746]: return type cannot have an unboxed trait object
  --> $DIR/point-to-type-err-cause-on-impl-trait-return.rs:85:13
   |
LL | fn man() -> dyn std::fmt::Display {
   |             ^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
   |
   = note: for information on trait objects, see <https://doc.rust-lang.org/book/ch17-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types>
   = note: if all the returned values were of the same type you could use `impl std::fmt::Display` as the return type
   = note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits>
   = note: you can create a new `enum` with a variant for each returned type
help: return a boxed trait object instead
   |
LL | fn man() -> Box<dyn std::fmt::Display> {
   |             ++++                     +
help: ... and box this value
   |
LL |         Box::new(0i32)
   |         +++++++++    +
help: ... and box this value
   |
LL |         Box::new(1u32)
   |         +++++++++    +

error: aborting due to 14 previous errors

Some errors have detailed explanations: E0308, E0746.
For more information about an error, try `rustc --explain E0308`.