error: you are trying to use classic C overflow conditions that will fail in Rust
  --> $DIR/overflow_check_conditional.rs:5:8
   |
LL |     if a + b < a {}
   |        ^^^^^^^^^
   |
   = note: `-D clippy::overflow-check-conditional` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::overflow_check_conditional)]`

error: you are trying to use classic C overflow conditions that will fail in Rust
  --> $DIR/overflow_check_conditional.rs:8:8
   |
LL |     if a > a + b {}
   |        ^^^^^^^^^

error: you are trying to use classic C overflow conditions that will fail in Rust
  --> $DIR/overflow_check_conditional.rs:10:8
   |
LL |     if a + b < b {}
   |        ^^^^^^^^^

error: you are trying to use classic C overflow conditions that will fail in Rust
  --> $DIR/overflow_check_conditional.rs:12:8
   |
LL |     if b > a + b {}
   |        ^^^^^^^^^

error: you are trying to use classic C underflow conditions that will fail in Rust
  --> $DIR/overflow_check_conditional.rs:14:8
   |
LL |     if a - b > b {}
   |        ^^^^^^^^^

error: you are trying to use classic C underflow conditions that will fail in Rust
  --> $DIR/overflow_check_conditional.rs:16:8
   |
LL |     if b < a - b {}
   |        ^^^^^^^^^

error: you are trying to use classic C underflow conditions that will fail in Rust
  --> $DIR/overflow_check_conditional.rs:18:8
   |
LL |     if a - b > a {}
   |        ^^^^^^^^^

error: you are trying to use classic C underflow conditions that will fail in Rust
  --> $DIR/overflow_check_conditional.rs:20:8
   |
LL |     if a < a - b {}
   |        ^^^^^^^^^

error: aborting due to 8 previous errors