error[E0369]: cannot add `i32` to `i32`
  --> $DIR/minicore.rs:33:20
   |
LL |     let x = 42_i32 + 43_i32;
   |             ------ ^ ------ i32
   |             |
   |             i32

error[E0369]: cannot add `i32` to `i32`
  --> $DIR/minicore.rs:37:20
   |
LL |     let x = 42_i32 + 43_i32;
   |             ------ ^ ------ i32
   |             |
   |             i32

error[E0600]: cannot apply unary operator `!` to type `bool`
  --> $DIR/minicore.rs:343:9
   |
LL |         !self.eq(other)
   |         ^^^^^^^^^^^^^^^ cannot apply unary operator `!`

error[E0600]: cannot apply unary operator `!` to type `bool`
  --> $DIR/minicore.rs:365:9
   |
LL |         !self
   |         ^^^^^ cannot apply unary operator `!`

error: aborting due to 4 previous errors

Some errors have detailed explanations: E0369, E0600.
For more information about an error, try `rustc --explain E0369`.