error[E0381]: use of possibly uninitialized variable: `x.0` --> $DIR/assign_mutable_fields.rs:11:10 | LL | drop(x.0); //~ ERROR | ^^^ use of possibly uninitialized `x.0` error[E0381]: use of possibly uninitialized variable: `x.1` --> $DIR/assign_mutable_fields.rs:12:10 | LL | drop(x.1); //~ ERROR | ^^^ use of possibly uninitialized `x.1` error[E0381]: use of possibly uninitialized variable: `x` --> $DIR/assign_mutable_fields.rs:19:10 | LL | drop(x); //~ ERROR | ^ use of possibly uninitialized `x` error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0381`.