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+error[E0502]: cannot borrow `x` as immutable because it is also borrowed as mutable
+ --> $DIR/method-self-arg-2.rs:15:14
+ |
+LL | let y = &mut x;
+ | ------ mutable borrow occurs here
+LL | Foo::bar(&x);
+ | ^^ immutable borrow occurs here
+LL | y.use_mut();
+ | ----------- mutable borrow later used here
+
+error[E0499]: cannot borrow `x` as mutable more than once at a time
+ --> $DIR/method-self-arg-2.rs:20:14
+ |
+LL | let y = &mut x;
+ | ------ first mutable borrow occurs here
+LL | Foo::baz(&mut x);
+ | ^^^^^^ second mutable borrow occurs here
+LL | y.use_mut();
+ | ----------- first borrow later used here
+
+error: aborting due to 2 previous errors
+
+Some errors have detailed explanations: E0499, E0502.
+For more information about an error, try `rustc --explain E0499`.