clippy 0.0.208

A bunch of helpful lints to avoid common pitfalls in Rust
error: You are trying to use classic C overflow conditions that will fail in Rust.
  --> $DIR/overflow_check_conditional.rs:11:5
   |
11 |     if a + b < a {
   |        ^^^^^^^^^
   |
   = note: `-D overflow-check-conditional` implied by `-D warnings`

error: You are trying to use classic C overflow conditions that will fail in Rust.
  --> $DIR/overflow_check_conditional.rs:14:5
   |
14 |     if a > a + b {
   |        ^^^^^^^^^

error: You are trying to use classic C overflow conditions that will fail in Rust.
  --> $DIR/overflow_check_conditional.rs:17:5
   |
17 |     if a + b < b {
   |        ^^^^^^^^^

error: You are trying to use classic C overflow conditions that will fail in Rust.
  --> $DIR/overflow_check_conditional.rs:20:5
   |
20 |     if b > a + b {
   |        ^^^^^^^^^

error: You are trying to use classic C underflow conditions that will fail in Rust.
  --> $DIR/overflow_check_conditional.rs:23:5
   |
23 |     if a - b > b {
   |        ^^^^^^^^^

error: You are trying to use classic C underflow conditions that will fail in Rust.
  --> $DIR/overflow_check_conditional.rs:26:5
   |
26 |     if b < a - b {
   |        ^^^^^^^^^

error: You are trying to use classic C underflow conditions that will fail in Rust.
  --> $DIR/overflow_check_conditional.rs:29:5
   |
29 |     if a - b > a {
   |        ^^^^^^^^^

error: You are trying to use classic C underflow conditions that will fail in Rust.
  --> $DIR/overflow_check_conditional.rs:32:5
   |
32 |     if a < a - b {
   |        ^^^^^^^^^

error: aborting due to 8 previous errors