error[E0005]: refutable pattern in local binding
  --> $DIR/const-pattern-irrefutable.rs:12:9
   |
LL | const a: u8 = 2;
   | ----------- constant defined here
...
LL |     let a = 4;
   |         ^
   |         |
   |         patterns `0_u8..=1_u8` and `3_u8..=u8::MAX` not covered
   |         missing patterns are not covered because `a` is interpreted as a constant pattern, not a new variable
   |         help: introduce a variable instead: `a_var`
   |
   = note: the matched value is of type `u8`

error[E0005]: refutable pattern in local binding
  --> $DIR/const-pattern-irrefutable.rs:17:9
   |
LL |     pub const b: u8 = 2;
   |     --------------- constant defined here
...
LL |     let c = 4;
   |         ^
   |         |
   |         patterns `0_u8..=1_u8` and `3_u8..=u8::MAX` not covered
   |         missing patterns are not covered because `c` is interpreted as a constant pattern, not a new variable
   |         help: introduce a variable instead: `c_var`
   |
   = note: the matched value is of type `u8`

error[E0005]: refutable pattern in local binding
  --> $DIR/const-pattern-irrefutable.rs:22:9
   |
LL |     pub const d: u8 = 2;
   |     --------------- constant defined here
...
LL |     let d = 4;
   |         ^
   |         |
   |         patterns `0_u8..=1_u8` and `3_u8..=u8::MAX` not covered
   |         missing patterns are not covered because `d` is interpreted as a constant pattern, not a new variable
   |         help: introduce a variable instead: `d_var`
   |
   = note: the matched value is of type `u8`

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0005`.