error: `~` cannot be used as a unary operator
  --> $DIR/issue-41679-tilde-bitwise-negation-attempt.rs:4:14
   |
LL |     let _x = ~1;
   |              ^ help: use `!` to perform bitwise not

error: unexpected `1` after identifier
  --> $DIR/issue-41679-tilde-bitwise-negation-attempt.rs:5:18
   |
LL |     let _y = not 1;
   |              ----^
   |              |
   |              help: use `!` to perform bitwise not

error: unexpected keyword `false` after identifier
  --> $DIR/issue-41679-tilde-bitwise-negation-attempt.rs:6:18
   |
LL |     let _z = not false;
   |              ----^^^^^
   |              |
   |              help: use `!` to perform logical negation

error: unexpected keyword `true` after identifier
  --> $DIR/issue-41679-tilde-bitwise-negation-attempt.rs:7:18
   |
LL |     let _a = not true;
   |              ----^^^^
   |              |
   |              help: use `!` to perform logical negation

error: unexpected `v` after identifier
  --> $DIR/issue-41679-tilde-bitwise-negation-attempt.rs:9:18
   |
LL |     let _v = not v;
   |              ----^
   |              |
   |              help: use `!` to perform logical negation or bitwise not

error: aborting due to 5 previous errors