rust/tests/ui/iterators/collect-into-slice.stderr
Esteban Küber c4c22b0d52 On E0277 be clearer about implicit Sized bounds on type params and assoc types
```
error[E0277]: the size for values of type `[i32]` cannot be known at compilation time
   --> f100.rs:2:33
    |
2   |     let _ = std::mem::size_of::<[i32]>();
    |                                 ^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `[i32]`
note: required by an implicit `Sized` bound in `std::mem::size_of`
   --> /home/gh-estebank/rust/library/core/src/mem/mod.rs:312:22
    |
312 | pub const fn size_of<T>() -> usize {
    |                      ^ required by the implicit `Sized` requirement on this bound in `size_of`
```

Fix #120178.
2024-02-01 03:30:26 +00:00

44 lines
1.9 KiB
Plaintext

error[E0277]: a slice of type `[i32]` cannot be built since `[i32]` has no definite size
--> $DIR/collect-into-slice.rs:6:38
|
LL | let some_generated_vec = (0..10).collect();
| ^^^^^^^ try explicitly collecting into a `Vec<{integer}>`
|
= help: the trait `FromIterator<{integer}>` is not implemented for `[i32]`
note: required by a bound in `collect`
--> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL
error[E0277]: the size for values of type `[i32]` cannot be known at compilation time
--> $DIR/collect-into-slice.rs:6:9
|
LL | let some_generated_vec = (0..10).collect();
| ^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `[i32]`
= note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
error[E0277]: the size for values of type `[i32]` cannot be known at compilation time
--> $DIR/collect-into-slice.rs:6:38
|
LL | let some_generated_vec = (0..10).collect();
| ^^^^^^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `[i32]`
note: required by an implicit `Sized` bound in `collect`
--> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL
error[E0277]: a slice of type `&[i32]` cannot be built since we need to store the elements somewhere
--> $DIR/collect-into-slice.rs:18:38
|
LL | let some_generated_vec = (0..10).collect();
| ^^^^^^^ try explicitly collecting into a `Vec<{integer}>`
|
= help: the trait `FromIterator<{integer}>` is not implemented for `&[i32]`
note: required by a bound in `collect`
--> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL
error: aborting due to 4 previous errors
For more information about this error, try `rustc --explain E0277`.