Fix deps, download URLs, remove duplicate deps (#310)

src/validate/mod.rs

@@ -37,7 +37,8 @@ pub enum SupportedGameVersions {
     All,
     PastDate(DateTime<Utc>),
     Range(DateTime<Utc>, DateTime<Utc>),
-    #[allow(dead_code)] Custom(Vec<GameVersion>),
+    #[allow(dead_code)]
+    Custom(Vec<GameVersion>),
 }
 
 pub trait Validator: Sync {

src/validate/pack.rs

@@ -33,7 +33,7 @@ pub struct PackFile<'a> {
     pub downloads: Vec<&'a str>,
 }
 
-fn validate_download_url(values: &Vec<&str>) -> Result<(), validator::ValidationError> {
+fn validate_download_url(values: &[&str]) -> Result<(), validator::ValidationError> {
     for value in values {
         let url = url::Url::parse(value)
             .ok()