clippy 0.0.208

A bunch of helpful lints to avoid common pitfalls in Rust
error: casting i8 to f32 may become silently lossy if types change
 --> $DIR/cast_lossless_float.rs:5:5
  |
5 |     1i8 as f32;
  |     ^^^^^^^^^^ help: try: `f32::from(1i8)`
  |
  = note: `-D cast-lossless` implied by `-D warnings`

error: casting i8 to f64 may become silently lossy if types change
 --> $DIR/cast_lossless_float.rs:6:5
  |
6 |     1i8 as f64;
  |     ^^^^^^^^^^ help: try: `f64::from(1i8)`

error: casting u8 to f32 may become silently lossy if types change
 --> $DIR/cast_lossless_float.rs:7:5
  |
7 |     1u8 as f32;
  |     ^^^^^^^^^^ help: try: `f32::from(1u8)`

error: casting u8 to f64 may become silently lossy if types change
 --> $DIR/cast_lossless_float.rs:8:5
  |
8 |     1u8 as f64;
  |     ^^^^^^^^^^ help: try: `f64::from(1u8)`

error: casting i16 to f32 may become silently lossy if types change
 --> $DIR/cast_lossless_float.rs:9:5
  |
9 |     1i16 as f32;
  |     ^^^^^^^^^^^ help: try: `f32::from(1i16)`

error: casting i16 to f64 may become silently lossy if types change
  --> $DIR/cast_lossless_float.rs:10:5
   |
10 |     1i16 as f64;
   |     ^^^^^^^^^^^ help: try: `f64::from(1i16)`

error: casting u16 to f32 may become silently lossy if types change
  --> $DIR/cast_lossless_float.rs:11:5
   |
11 |     1u16 as f32;
   |     ^^^^^^^^^^^ help: try: `f32::from(1u16)`

error: casting u16 to f64 may become silently lossy if types change
  --> $DIR/cast_lossless_float.rs:12:5
   |
12 |     1u16 as f64;
   |     ^^^^^^^^^^^ help: try: `f64::from(1u16)`

error: casting i32 to f64 may become silently lossy if types change
  --> $DIR/cast_lossless_float.rs:13:5
   |
13 |     1i32 as f64;
   |     ^^^^^^^^^^^ help: try: `f64::from(1i32)`

error: casting u32 to f64 may become silently lossy if types change
  --> $DIR/cast_lossless_float.rs:14:5
   |
14 |     1u32 as f64;
   |     ^^^^^^^^^^^ help: try: `f64::from(1u32)`

error: aborting due to 10 previous errors