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error[E0277]: the size for values of type `str` cannot be known at compilation time
--> $DIR/dst-rvalue.rs:4:33
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LL | let _x: Box<str> = Box::new(*"hello world");
| -------- ^^^^^^^^^^^^^^ doesn't have a size known at compile-time
| |
| required by a bound introduced by this call
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= help: the trait `Sized` is not implemented for `str`
note: required by a bound in `Box::<T>::new`
--> $SRC_DIR/alloc/src/boxed.rs:LL:COL
help: references are always `Sized`, even if they point to unsized data; consider not dereferencing the expression
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LL - let _x: Box<str> = Box::new(*"hello world");
LL + let _x: Box<str> = Box::new("hello world");
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error[E0277]: the size for values of type `[isize]` cannot be known at compilation time
--> $DIR/dst-rvalue.rs:8:37
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LL | let _x: Box<[isize]> = Box::new(*array);
| -------- ^^^^^^ doesn't have a size known at compile-time
| |
| required by a bound introduced by this call
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= help: the trait `Sized` is not implemented for `[isize]`
note: required by a bound in `Box::<T>::new`
--> $SRC_DIR/alloc/src/boxed.rs:LL:COL
help: references are always `Sized`, even if they point to unsized data; consider not dereferencing the expression
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LL - let _x: Box<[isize]> = Box::new(*array);
LL + let _x: Box<[isize]> = Box::new(array);
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error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.
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