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			15 lines
		
	
	
		
			566 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
error[E0502]: cannot borrow `foo` as mutable because it is also borrowed as immutable
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  --> $DIR/borrowck-issue-49631.rs:20:9
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LL |     while let Some(Ok(string)) = foo.get() {
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   |                                  --- immutable borrow occurs here
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LL |         foo.mutate();
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   |         ^^^^^^^^^^^^ mutable borrow occurs here
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LL |
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LL |         println!("foo={:?}", *string);
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   |                              ------- immutable borrow later used here
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0502`.
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