error: integer type suffix should be separated by an underscore
  --> $DIR/unseparated_prefix_literals.rs:23:18
   |
LL |     let _fail1 = 1234i32;
   |                  ^^^^^^^ help: add an underscore: `1234_i32`
   |
   = note: `-D clippy::unseparated-literal-suffix` implied by `-D warnings`

error: integer type suffix should be separated by an underscore
  --> $DIR/unseparated_prefix_literals.rs:24:18
   |
LL |     let _fail2 = 1234u32;
   |                  ^^^^^^^ help: add an underscore: `1234_u32`

error: integer type suffix should be separated by an underscore
  --> $DIR/unseparated_prefix_literals.rs:25:18
   |
LL |     let _fail3 = 1234isize;
   |                  ^^^^^^^^^ help: add an underscore: `1234_isize`

error: integer type suffix should be separated by an underscore
  --> $DIR/unseparated_prefix_literals.rs:26:18
   |
LL |     let _fail4 = 1234usize;
   |                  ^^^^^^^^^ help: add an underscore: `1234_usize`

error: integer type suffix should be separated by an underscore
  --> $DIR/unseparated_prefix_literals.rs:27:18
   |
LL |     let _fail5 = 0x123isize;
   |                  ^^^^^^^^^^ help: add an underscore: `0x123_isize`

error: float type suffix should be separated by an underscore
  --> $DIR/unseparated_prefix_literals.rs:31:19
   |
LL |     let _failf1 = 1.5f32;
   |                   ^^^^^^ help: add an underscore: `1.5_f32`

error: float type suffix should be separated by an underscore
  --> $DIR/unseparated_prefix_literals.rs:32:19
   |
LL |     let _failf2 = 1f32;
   |                   ^^^^ help: add an underscore: `1_f32`

error: integer type suffix should be separated by an underscore
  --> $DIR/unseparated_prefix_literals.rs:15:9
   |
LL |         42usize
   |         ^^^^^^^ help: add an underscore: `42_usize`
...
LL |     let _ = lit_from_macro!();
   |             ----------------- in this macro invocation

error: integer type suffix should be separated by an underscore
  --> $DIR/unseparated_prefix_literals.rs:40:16
   |
LL |     assert_eq!(4897u32, 32223);
   |                ^^^^^^^ help: add an underscore: `4897_u32`

error: aborting due to 9 previous errors