1 warning: value assigned to `a` is never read
2 --> $DIR/warn-unused-duplication.rs:9:6
7 = help: maybe it is overwritten before being read?
8 note: the lint level is defined here
9 --> $DIR/warn-unused-duplication.rs:3:9
11 LL | #![warn(unused_assignments)]
14 warning: 1 warning emitted