Reduce amount of ignored clippy lints

Makefile

@@ -11,6 +11,6 @@ format:
 	cargo +nightly fmt
 
 clippy:
-	cargo clippy --all-targets --all-features -- -D warnings -A clippy::redundant_field_names -A clippy::useless_format -A clippy::let_and_return -A clippy::type_complexity -A clippy::option_map_unit_fn -A clippy::too_many_arguments -A clippy::redundant_closure -A clippy::identity_conversion -A clippy::expect_fun_call
+	cargo clippy --all-targets --all-features -- -D warnings -A clippy::redundant_field_names -A clippy::useless_format -A clippy::let_and_return -A clippy::type_complexity -A clippy::option_map_unit_fn -A clippy::identity_conversion -A clippy::expect_fun_call
 
 

src/core.rs

@@ -31,7 +31,6 @@ pub struct ContestInfo {
     pub tasks: Vec<TaskInfo>,
 }
 
-#[allow(dead_code)] //CsrfCheckFailed, SessionTimeout, DatabaseError and UnmatchedPasswords are used in webfw_iron.rs.
 #[derive(Clone)]
 pub enum MedalError {
     NotLoggedIn,
@@ -651,9 +650,7 @@ impl std::convert::Into<String> for ProfileStatus {
 }
 
 pub fn edit_profile<T: MedalConnection>(conn: &T, session_token: &str, user_id: Option<i32>, csrf_token: &str,
-                                        firstname: String, lastname: String, street: Option<String>,
-                                        zip: Option<String>, city: Option<String>, password: Option<String>,
-                                        password_repeat: Option<String>, grade: i32)
+                                        (firstname, lastname, street, zip, city, password, password_repeat, grade): (String, String,Option<String>,Option<String>,Option<String>,Option<String>,Option<String>,i32))
                                         -> MedalResult<ProfileStatus>
 {
     let mut session = conn.get_session(&session_token)

src/webfw_iron.rs

@@ -580,14 +580,7 @@ fn profile_post<C>(req: &mut Request) -> IronResult<Response>
                                          &session_token,
                                          None,
                                          &csrf_token,
-                                         firstname,
-                                         lastname,
-                                         street,
-                                         zip,
-                                         city,
-                                         pwd,
-                                         pwd_repeat,
-                                         grade].aug(req)?;
+                                         (firstname, lastname, street, zip, city, pwd, pwd_repeat, grade)].aug(req)?;
 
     Ok(Response::with((status::Found,
                        Redirect(iron::Url::parse(&format!("{}?status={:?}",
@@ -632,14 +625,7 @@ fn user_post<C>(req: &mut Request) -> IronResult<Response>
                                          &session_token,
                                          Some(user_id),
                                          &csrf_token,
-                                         firstname,
-                                         lastname,
-                                         street,
-                                         zip,
-                                         city,
-                                         pwd,
-                                         pwd_repeat,
-                                         grade].aug(req)?;
+                                         (firstname, lastname, street, zip, city, pwd, pwd_repeat, grade)].aug(req)?;
 
     Ok(Response::with((status::Found,
                        Redirect(iron::Url::parse(&format!("{}?status={:?}",