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47 lines
2.0 KiB
Plaintext
47 lines
2.0 KiB
Plaintext
warning: denote infinite loops with `loop { ... }`
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--> $DIR/liveness-move-in-while.rs:8:9
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LL | while true { while true { while true { x = y; x.clone(); } } }
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| ^^^^^^^^^^ help: use `loop`
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= note: `#[warn(while_true)]` on by default
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warning: denote infinite loops with `loop { ... }`
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--> $DIR/liveness-move-in-while.rs:8:22
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LL | while true { while true { while true { x = y; x.clone(); } } }
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| ^^^^^^^^^^ help: use `loop`
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warning: denote infinite loops with `loop { ... }`
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--> $DIR/liveness-move-in-while.rs:8:35
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LL | while true { while true { while true { x = y; x.clone(); } } }
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| ^^^^^^^^^^ help: use `loop`
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error[E0382]: borrow of moved value: `y`
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--> $DIR/liveness-move-in-while.rs:7:24
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LL | let y: Box<isize> = 42.into();
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| - move occurs because `y` has type `Box<isize>`, which does not implement the `Copy` trait
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...
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LL | loop {
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| ---- inside of this loop
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LL | println!("{}", y);
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| ^ value borrowed here after move
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LL | while true { while true { while true { x = y; x.clone(); } } }
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| ---------- ---------- ---------- - value moved here, in previous iteration of loop
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| | | |
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| | | inside of this loop
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| | inside of this loop
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| inside of this loop
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= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
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help: consider cloning the value if the performance cost is acceptable
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LL | while true { while true { while true { x = y.clone(); x.clone(); } } }
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| ++++++++
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error: aborting due to previous error; 3 warnings emitted
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For more information about this error, try `rustc --explain E0382`.
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