Use Nightly + Cranelift for dev, only fail on warnings in CI (#4388)

* Switch to nightly + cranelift

* Fail on warnings only in CI

* Fix check errors

* Don't use mold on Linux to fix CI

* Pin nightly toolchain and add default rustup components

* Fix another CI thing

* PR comment

apps/labrinth/src/database/models/version_item.rs

@@ -1010,7 +1010,7 @@ mod tests {
 
     #[test]
     fn test_version_sorting() {
-        let versions = vec![
+        let versions = [
             get_version(4, None, months_ago(6)),
             get_version(3, None, months_ago(7)),
             get_version(2, Some(1), months_ago(6)),

apps/labrinth/src/routes/v2/version_creation.rs

@@ -73,12 +73,6 @@ pub struct InitialVersionData {
     pub ordering: Option<i32>,
 }
 
-#[derive(Serialize, Deserialize, Clone)]
-struct InitialFileData {
-    #[serde(default = "HashMap::new")]
-    pub file_types: HashMap<String, Option<FileType>>,
-}
-
 // under `/api/v1/version`
 #[post("version")]
 pub async fn version_create(