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error[E0277]: the size for values of type `Self` cannot be known at compilation time
--> $DIR/trait-with-supertraits-needing-sized-self.rs:3:22
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LL | trait ArithmeticOps: Add<Output=Self> + Sub<Output=Self> + Mul<Output=Self> + Div<Output=Self> {}
| ^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
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note: required by a bound in `Add`
--> $SRC_DIR/core/src/ops/arith.rs:LL:COL
help: consider further restricting `Self`
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LL | trait ArithmeticOps: Add<Output=Self> + Sub<Output=Self> + Mul<Output=Self> + Div<Output=Self> + Sized {}
| +++++++
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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