error: comparison is useless due to type limits
  --> $DIR/lint-type-limits.rs:8:11
   |
LL |     while i >= 0 {
   |           ^^^^^^
   |
   = note: requested on the command line with `-D unused-comparisons`

error: comparison is useless due to type limits
  --> $DIR/lint-type-limits.rs:19:13
   |
LL |     let _ = u > 255;
   |             ^^^^^^^

error: comparison is useless due to type limits
  --> $DIR/lint-type-limits.rs:20:13
   |
LL |     let _ = 255 < u;
   |             ^^^^^^^

error: comparison is useless due to type limits
  --> $DIR/lint-type-limits.rs:21:13
   |
LL |     let _ = u < 0;
   |             ^^^^^

error: comparison is useless due to type limits
  --> $DIR/lint-type-limits.rs:22:13
   |
LL |     let _ = 0 > u;
   |             ^^^^^

error: comparison is useless due to type limits
  --> $DIR/lint-type-limits.rs:23:13
   |
LL |     let _ = u <= 255;
   |             ^^^^^^^^

error: comparison is useless due to type limits
  --> $DIR/lint-type-limits.rs:24:13
   |
LL |     let _ = 255 >= u;
   |             ^^^^^^^^

error: comparison is useless due to type limits
  --> $DIR/lint-type-limits.rs:25:13
   |
LL |     let _ = u >= 0;
   |             ^^^^^^

error: comparison is useless due to type limits
  --> $DIR/lint-type-limits.rs:26:13
   |
LL |     let _ = 0 <= u;
   |             ^^^^^^

error: aborting due to 9 previous errors