Small fixes to primitive_types6.rs

[notmatt]

It appears that #548 (thanks for the new test!) introduced a parse error and warning when the actual exercise is completed correctly. These commits correct the parse error (missing comma) and remove the potentially distracting unused doc comment warning.

Output when the let second = ???; is corrected:

⚠️  Compiling of exercises/primitive_types/primitive_types6.rs failed! Please try again. Here's the output:
error: no rules expected the token `"This is not the 2nd number in the tuple!"`
  --> exercises/primitive_types/primitive_types6.rs:15:9
   |
14 |     assert_eq!(2, second
   |                         - help: missing comma here
15 |         "This is not the 2nd number in the tuple!")
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no rules expected this token in macro call

warning: unused doc comment
  --> exercises/primitive_types/primitive_types6.rs:11:5
   |
11 |     /// Replace below ??? with the tuple indexing syntax.
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
12 |     let second = numbers.1;
   |     ----------------------- rustdoc does not generate documentation for statements
   |
   = note: `#[warn(unused_doc_comments)]` on by default

error: aborting due to previous error; 1 warning emitted

[shadows-withal]

Thanks!

[darnuria]

Whops it's my fault! thanks for your sharp eyes, think I got distracted since it was the first time I used the github review add functionality will be more careful next time! :D

[notmatt]

Totally my pleasure to lend a hand! Thanks for the quick merge. M.

…

On Oct 14, 2020, at 13:15, Axel Viala ***@***.***> wrote:  Whops it's my fault! thanks for your sharp eyes, think I got distracted since I used the github review add functionality will be more careful next time! :D — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.