src/test/ui/cast/issue-85586.stderr

   1 error[E0282]: type annotations needed
   2   --> $DIR/issue-85586.rs:8:13
   3    |
   4 LL |     let b = (a + 1) as usize;
   5    |             ^^^^^^^ cannot infer type
   6
   7 error: aborting due to previous error
   8
   9 For more information about this error, try `rustc --explain E0282`.