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error[E0019]: constant function contains unimplemented expression type
--> $DIR/const_let_assign3.rs:9:9
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LL | self.state = x;
| ^^^^^^^^^^^^^^
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= help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
error[E0764]: mutable references are not allowed in constants
--> $DIR/const_let_assign3.rs:16:5
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LL | s.foo(3);
| ^ `&mut` is only allowed in `const fn`
error[E0764]: mutable references are not allowed in constants
--> $DIR/const_let_assign3.rs:22:13
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LL | let y = &mut x;
| ^^^^^^ `&mut` is only allowed in `const fn`
error[E0019]: constant contains unimplemented expression type
--> $DIR/const_let_assign3.rs:24:5
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LL | *y = 42;
| ^^^^^^^
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= help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
error: aborting due to 4 previous errors
Some errors have detailed explanations: E0019, E0764.
For more information about an error, try `rustc --explain E0019`.
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