diff --git a/.all-contributorsrc b/.all-contributorsrc
index 98a7e9f0..56e4d53f 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -591,6 +591,33 @@
       "contributions": [
         "content"
       ]
+    },
+    {
+      "login": "ryanpcmcquen",
+      "name": "Ryan McQuen",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/772937?v=4",
+      "profile": "https://ryanpcmcquen.org",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "AnnikaCodes",
+      "name": "Annika",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/56906084?v=4",
+      "profile": "https://github.com/AnnikaCodes",
+      "contributions": [
+        "review"
+      ]
+    },
+    {
+      "login": "darnuria",
+      "name": "Axel Viala",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/2827553?v=4",
+      "profile": "https://darnuria.eu",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 8,
diff --git a/README.md b/README.md
index efad42b8..a618abb5 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 ![crab pet](https://i.imgur.com/LbZJgmm.gif)
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-63-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-65-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 # rustlings 🦀❤️ [![Build status](https://badge.buildkite.com/7af93d81dc522c67a1ec8e33ff5705861b1cb36360b774807f.svg)](https://buildkite.com/mokou/rustlings)
@@ -226,6 +226,11 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/GaurangTandon"><img src="https://avatars1.githubusercontent.com/u/6308683?v=4" width="100px;" alt=""/><br /><sub><b>Gaurang Tandon</b></sub></a><br /><a href="#content-GaurangTandon" title="Content">🖋</a></td>
     <td align="center"><a href="https://github.com/dev-cyprium"><img src="https://avatars1.githubusercontent.com/u/6002628?v=4" width="100px;" alt=""/><br /><sub><b>Stefan Kupresak</b></sub></a><br /><a href="#content-dev-cyprium" title="Content">🖋</a></td>
     <td align="center"><a href="https://github.com/greg-el"><img src="https://avatars3.githubusercontent.com/u/45019882?v=4" width="100px;" alt=""/><br /><sub><b>Greg Leonard</b></sub></a><br /><a href="#content-greg-el" title="Content">🖋</a></td>
+    <td align="center"><a href="https://ryanpcmcquen.org"><img src="https://avatars3.githubusercontent.com/u/772937?v=4" width="100px;" alt=""/><br /><sub><b>Ryan McQuen</b></sub></a><br /><a href="https://github.com/rust-lang/rustlings/commits?author=ryanpcmcquen" title="Code">💻</a></td>
+  </tr>
+  <tr>
+    <td align="center"><a href="https://github.com/AnnikaCodes"><img src="https://avatars3.githubusercontent.com/u/56906084?v=4" width="100px;" alt=""/><br /><sub><b>Annika</b></sub></a><br /><a href="https://github.com/rust-lang/rustlings/pulls?q=is%3Apr+reviewed-by%3AAnnikaCodes" title="Reviewed Pull Requests">👀</a></td>
+    <td align="center"><a href="https://darnuria.eu"><img src="https://avatars1.githubusercontent.com/u/2827553?v=4" width="100px;" alt=""/><br /><sub><b>Axel Viala</b></sub></a><br /><a href="https://github.com/rust-lang/rustlings/commits?author=darnuria" title="Code">💻</a></td>
   </tr>
 </table>
 
diff --git a/exercises/primitive_types/primitive_types6.rs b/exercises/primitive_types/primitive_types6.rs
index 8e63f8ee..07e021bf 100644
--- a/exercises/primitive_types/primitive_types6.rs
+++ b/exercises/primitive_types/primitive_types6.rs
@@ -1,10 +1,11 @@
 // primitive_types6.rs
 // Use a tuple index to access the second element of `numbers`.
-// You can put this right into the `println!` where the ??? is.
+// You can put the expression for the second element where ??? is so that the test passes.
 // Execute `rustlings hint primitive_types6` for hints!
 
 
-fn main() {
+#[test]
+fn indexing_tuple() {
     let numbers = (1, 2, 3);
     println!("The second number is {}", numbers.1);
 }
diff --git a/exercises/tests/tests3.rs b/exercises/tests/tests3.rs
index 56bf0b76..e03ac6fd 100644
--- a/exercises/tests/tests3.rs
+++ b/exercises/tests/tests3.rs
@@ -21,5 +21,4 @@ mod tests {
     #[test]
     fn is_false_when_even() {
         assert!(!is_even(5));
-    }
 }
diff --git a/info.toml b/info.toml
index 28bf24d6..2d0abdb1 100644
--- a/info.toml
+++ b/info.toml
@@ -210,7 +210,7 @@ of the tuple. You can do it!!"""
 [[exercises]]
 name = "primitive_types6"
 path = "exercises/primitive_types/primitive_types6.rs"
-mode = "compile"
+mode = "test"
 hint = """
 While you could use a destructuring `let` for the tuple here, try
 indexing into it instead, as explained in the last example of the